Basic · Web viewIdentify procedures for and walk-through steps for weighing an aircraft Perform weight and balance calculations Calculate ballast/weight shift Check aircraft weighing

ARAC ACS – AMT WG: Recommendations for AMT ACS

Section I: General(A) Basic Electricity

The applicant demonstrates understanding of:

(1) Electron theory(2) Magnetism(3) Capacitance in a circuit(4) Inductance in a circuit(5) AC electrical circuits(6) DC electrical circuits(7) Ohm's law(8) Kirchhoff's law(s)(9) Voltage(10)Current(11)Resistance(12)Power(13)Series circuits(14)Parallel circuits(15)Aircraft batteries(16)Transformers(17)Circuit continuity(18)Controlling devises including switches and relays(19)Protective devices including fuses and circuit breakers(20)Resistor types and color coding(21)DC motors(22)AC motors(23)Semiconductors including diodes, transistors and integrated circuits(24)Digital logic, including RAM, ROM, NVRAM, AND-gate, OR-gate, Inverter, Flip-flop(25)Digital numbers(26)Introduction to troubleshooting process(27)Electrostatic discharge(28)Electrical circuit drawings

The applicant demonstrates the skill to perform, as a minimum, one of the following elements:

(1) Perform circuit continuity test(2) Measure voltage(3) Measure current(4) Measure resistance(5) Calculate power(6) Calculate capacitance and/or inductance(7) Test a switch or relay(8) Test a fuse or circuit breaker(9) Read and interpret aircraft electrical circuit diagrams, symbols, including solid state devices

and logic functions(10)Troubleshoot a circuit(11)Inspect and service an aircraft battery and compartment

AMT ACS RecommendationsPage 2 of 32

(12)Symbols used in electrical and electronic schematic diagrams, such as grounds, shields, resistors, capacitors, fuses, circuit breakers, batteries, diodes, transistors, and integrated circuits

The applicant identifies, assesses and mitigates risks, encompassing:

(1) Safety factors involved in taking voltage, current, resistance and capacitance measurements(2) Handling and storage of different type batteries. i.e. lead acid, NiCad, lithium ion, gel cell,

etc.(3) Safety factors when dealing with high-voltage circuits such as found in strobe lighting(4) Determine or measure for open electrical circuits(5) Measure voltage drop across a resistor

(B) Aircraft Drawing


(1) Drawings, blueprints, sketches and/or system schematics including commonly used lines, symbols and terminology

(2) Repair or alteration of an aircraft system or component(s) using drawings/blueprints and/or system schematics

The applicant demonstrates skill to perform, as a minimum, one of the following elements:

(1) Draw a sketch of a major repair or alteration(2) Identify the meaning of lines and symbols used in an aircraft drawing(3) Interpret dimensions used in an aircraft drawing(4) Identify changes on an aircraft drawing(5) Determine material requirements from an aircraft drawing(6) Troubleshoot an aircraft system or component using an aircraft drawing(7) Inspect an aircraft system or component using an aircraft drawing(8) Maintain an aircraft system or component using an aircraft drawing(9) Interpret graphs and charts


(1) Plus or minus tolerances as depicted on aircraft drawings(2) Use of manufactures specifications for design of alterations and repairs

(C) Weight and Balance


(1) Commonly used terminology such as datum, arm, moment (positive or negative), tare, ballast, and residual fuel/oil

(2) Purpose of weighing or reweighing an aircraft(3) Weighing procedures(4) Purpose and application of mean aerodynamic chord(5) Procedures for calculation of the following: arm, moment (positive or negative), center of

gravity (CG) or moment index(6) Relationship of airplane CG to the center of lift(7) Adverse loading considerations(8) Determine proper empty weight configuration

Demonstrates skill to perform, as a minimum, one of the following elements:


(1) Identify procedures for and walk-through steps for weighing an aircraft(2) Perform weight and balance calculations(3) Calculate ballast/weight shift(4) Check aircraft weighing scales for calibration(5) Calculate weight and balance data for an aircraft after an equipment change(6) Compute forward and aft loaded CG(7) Determine a location for permanent ballast to bring an aircraft back into balance(8) Create a maintenance record for a weight and balance change(9) Compute the amount of fuel needed for weight and balance computations(10)Record scale readings from a weighed aircraft(11)Computer lateral CG for a helicopter(12)Calculate the moment of an item of equipment(13)Identify tare items(14)Locate weight and balance information(15)Locate datum(16)Locate the baggage compartment placarding requirements for an aircraft(17)Revise an aircraft equipment list after equipment change(18)Determine the weight and location of required ballast(19)Calculate the change needed to correct an overweight or out of balance condition


(1) Situations that can lead to unsafe conditions when jacking an aircraft; i.e. jacking the aircraft in an area that is susceptible to wind gusts

(2) Dangers of weighing an aircraft without following recommended procedures(3) Improper use of scales(4) Adverse loading considerations

(D) Fluid Lines and Fittings


(1) Tubing and hose materials(2) Tubing and hose applications(3) Tubing and hose sizes(4) Tubing and hose fittings(5) Flexible hose identification(6) Rigid line fabrication techniques/practices(7) Rigid line installation techniques/practices(8) Flexible hose fabrication techniques/practices(9) Flexible hose installation techniques/practices


(1) Fabricate an aircraft tube(2) Install an aircraft tube(3) Install an aircraft hose(4) Perform a tubing or hose inspection(5) Identify installation and security requirements for tubing and hose(6) Identify fluid and air lines and fittings(7) Fabricate a flare on tubing


(8) Install a flareless-fitting-tube connection


(1) Proper system configuration prior to and during maintenance. i.e. all pressures depleted and system tagged prior to disassembly or maintenance

(2) Proper use of required safety equipment and gear(3) Use of FAA-approved materials and components(4) Avoiding twisting when installing flexible fluid hoses(5) Importance of using a torque wrench when securing fluid hose and line fittings(6) Use of torque seal or similar witness techniques after installing critical fluid hose and line

fittings

(E) Materials, Hardware and Processes


(1) Materials commonly used in aircraft and their general application(2) Heat treatment, using DD or “icebox” rivets(3) Forces placed on aircraft materials(4) Hardware commonly used in aircraft including bolts, nuts, screws, pins, washers, turnlock

fasteners, cables, cable fittings, and rigid line couplings(5) Safety wire and safety clip requirements and techniques(6) Precision measurement and precision measurement tools, principles and procedures(7) Visible characteristics of acceptable and/or unacceptable welds(8) Which non-destructive testing methods are appropriate for various materials(9) Use of torque wrenches(10)Wet vs. dry torque(11)Running vs. breakaway torque


(1) Install safety wire on nuts, bolts, turnbuckles and airframe or engine components(2) Properly torque aircraft hardware(3) Perform a visual inspection of various welds(4) Identify different kinds of aircraft materials and hardware(5) Select and install aircraft bolts(6) Make precision measurements with a micrometer that has a vernier scale(7) Check the alignment of a shaft(8) Identify aircraft control cable part number(9) Fabricate a cable assembly using a swaged end fitting(10)Select the correct aluminum alloy for a structural repair(11)Identify rivets by physical characteristics(12)Determine suitability of materials for aircraft repairs(13)Distinguish between heat-treated and non-heat-treated aluminum alloys(14)Determine required torque value of given item(15)Check for proper calibration of a micrometer(16)Identify proper installation procedures for a seal, backup ring, and/or gasket


(1) The proper use personal protective equipment (PPE)


(2) Suitability and compatibility of materials and hardware to be used for a repair or an alteration

(3) Consequences of improper torque(4) Inspection of threaded fasteners for damaged threads or damaged cadmium plating(5) Relationship between torque and fastener preload(6) Misunderstanding and misapplication of torqueing techniques on critical highly-stressed

fasteners(7) Parts precautions

(F) Ground Operation and Servicing


(1) Aircraft towing procedures(2) Aircraft securing procedures(3) Types of aviation fuel(4) Aviation fueling procedures(5) Airport operation procedures(6) Starting, ground operating, and/or taxiing procedures(7) Types/classes of fire extinguishers and procedures(8) Aircraft oil, hydraulic and pneumatic, deicing etc. servicing procedures(9) Oxygen system servicing procedures(10)Characteristics of aviation gasoline and/or turbine fuels, including basic types and means of

identification(11)Fuel additives commonly used in the field(12)Use of automobile fuel in aircraft engines(13)Select an approved fuel for an aircraft(14)Locate jacking procedures(15)Locate jacking points


(1) Identify procedures for and walk-through steps to secure an aircraft(2) Identify procedures for and walk-through steps to tow an aircraft(3) Follow a start-up checklist for an aircraft reciprocating or turbine engine(4) Prepare an aircraft for engine starting(5) Use appropriate hand signals for the movement of aircraft(6) Identify procedures for and walk-through steps to fuel an aircraft(7) Determine the remaining amount of fuel in an aircraft(8) Inspect an aircraft fuel system for water contamination(9) Walk-through the procedures for extinguishing fires in an engine induction system during

starting(10)Connect an external auxiliary power unit(11)Identify different grades of aviation gasoline(12)Identify procedures for and walk-through steps to secure a helicopter for high-wind

conditions(13)Identify procedures for and walk-through steps to secure a turbine-powered aircraft after

engine shutdown(14)Location jacking points



(1) Dangers associated with starting, ground operating, and/or taxiing aircraft and procedures for preventing, minimizing or otherwise managing any of them

(2) Fuel contamination hazards(3) Dangers associated with misfueling an aircraft(4) Dangers associated with starting a turbine aircraft engine and engine run-up(5) Oxygen system safety practices/precautions(6) Cautions involved in preparing to tow an aircraft. i.e. brakes, clearance for large aircraft, etc.(7) Ground operations of piston aircraft engines with cowling removed(8) Risks associated with high-power and extended low-power ground operations of piston

aircraft engines (when they have little or no cooling airflow)

(G) Cleaning and Corrosion Control


(1) Aircraft washing procedures(2) Corrosion theory(3) Types and effects of corrosion(4) Corrosion causation(5) Corrosion prone areas in aircraft(6) Corrosion preventive maintenance procedures(7) Corrosion identification and inspection(8) Corrosion removal and treatment procedures(9) Various kinds of Corrosion Preventive Compounds (CPCs), such as waxy sealants, thin-film

dielectrics, etc.(10)Selection of optimal CPCs(11) Frequency of CPC treatment


(1) Perform a portion of an aircraft corrosion inspection(2) Identify and select aircraft finishing materials(3) Apply finishing materials(4) Inspect finishes and identify defects(5) The use of high-pressure application equipment (“fogging”) for optimal application for

modern thin-film dielectric CPCs

The applicant demonstrates the ability to identify, assess and mitigate risks, encompassing:

(1) Improper use of cleaners on aluminum or composite materials(2) Dissimilar metals causing accelerated corrosion, and role of things like cadmium plating to

mitigate this risk(3) Improper use or lack of use of appropriate PPE when handling solvents

(H) Mathematics


(1) Areas of various geometrical shapes(2) Volumes of various geometrical shapes(3) Definitions/descriptions of geometrical terms, including but not limited to any of the

following: polygon, pi, diameter, radius, and hypotenuse


(4) Ratio problems, including examples of where or how they may be used in relation to aircraft maintenance or system(s) operation

(5) Proportion problems, including examples of where or how they may be used in relation to aircraft maintenance or system(s) operation

(6) Percentage problems, including examples of where or how they may be used in relation to aircraft maintenance or system(s) operation

(7) Algebraic operations, including examples of where or how they may be used in relation to aircraft maintenance

(8) Conditions or areas where metric conversion may be necessary(9) Scientific (exponential) notation, decimal notation, fractional notation, and conversion

between these various forms of numeric notation(10)Precision and rounding


(1) Determine the square root of given numbers(2) Compute the volume of a cylinder(3) Compute the area of a wing(4) Calculate the volume of a shape; such as a baggage compartment or fuel tank(5) Convert fractional numbers to decimal equivalents(6) Compare two numerical values using ratios(7) Compute compression ratio(8) Add, subtract, multiply, and/or divide positive and negative numbers(9) Compute the least common denominator of two or more fractions(10)Compute the torque value change when using a torque wrench with an extension(11)Convert between binary and decimal numerical forms

The applicant identifies, assesses and mitigates risks, encompassing

(1) Failure to use the standard order of operation when solving an algebraic equation(2) Failure to maintain the correct positive or negative integer in mathematical operations(3) Inadequate precision when doing calculations

(I) Regulations and Recordkeeping


(1) Privileges and limitations of a mechanic certificate(2) Recent experience requirements and how to re-establish once lost(3) Meaning of approval for return to service after repairs and/or alterations(4) Meaning of approval for return to service after inspection(5) The use of FAA maintenance recordkeeping forms (e.g., FAA Forms 337, 8010-4, 8100-2,

8050-3 and 8130-3)(6) Maintenance terminology as defined in 14 CFR part 1 (e.g. time in service, maintenance,

preventive maintenance, major alteration, major repair, minor alteration and minor repair)(7) Criteria for determining whether a repair or alteration is major or minor(8) The regulatory framework including general subject matter of the relevant parts of 14 CFR(9) Agency publications and guidance materials including type certificate data sheets (TCDS),

advisory circulars and airworthiness directives(10)Manufacturer publications including maintenance manuals, service bulletins, maintenance

alerts and master minimum equipment list


(11)FAA databases and resources available including type certificate data sheets and supplemental type certificates

(12)TCDS non-regulatory and non-compulsory status(13)Compliance with service bulletins are not compulsory for part 91 operators, even so-called

“mandatory” service bulletins, unless mandated by an Airworthiness Directive(14)Intervals (inspection, replacement, overhaul) in the maintenance manual are NOT

compulsory unless included in an FAA-approved Airworthiness Limitations section of the MM

(15)Methods, techniques and practices in the maintenance manual are acceptable but NOT compulsory, and alternative acceptable methods, techniques and practices may be used

(16)Compliance with the overhaul manual is required if a repair is documented as an “overhaul” but is not required if it is documented as a “repair”

(17)Compliance with ICA follow the same rules as for MM. Intervals (inspection, replacement, overhaul) in ICA are NOT compulsory unless included in an FAA-approved Airworthiness Limitations section of the ICA. Methods, techniques and practices in the ICA are acceptable but NOT compulsory, and alternative acceptable methods, techniques and practices may be used

(18)Records content, form, and disposition requirements for major repairs and/or major alterations


(1) Complete FAA Form 337 or 8130-3 based on a given set of facts (e.g., 100-hour inspection, serviceable part installation, applicable airworthiness directive, applicable service bulletin, etc.)

(2) Check accuracy of a completed FAA Form 337 or 8130-3(3) Determine aircraft airworthiness by examining maintenance record entries(4) Prepare a master airworthiness directives list for a specific airframe, engine and/or propeller

and determine applicability by make, model, and serial number(5) Create a current equipment list for an aircraft, listing all equipment installed(6) Locate applicable FAA aircraft specifications and/or FAA type certificate data sheet for an

aircraft or component(7) Determine an aircraft’s CG range using aircraft specifications and type certificate data sheets(8) Locate aircraft flight control travel limits(9) Determine applicability of an airworthiness directive(10)Check a technical standard order part for the proper markings(11)Use a manufacturer’s illustrated parts catalog to locate a specific part number(12)Locate supplemental type certificates applicable to a specific aircraft(13)Determine the conformity of aircraft instrument range markings and/or placarding(14)Determine approved tires for installation on a given aircraft(15)Determine maximum allowable weight of a specific aircraft(16)Determine whether a given repair or alteration is major or minor(17)Locate mechanic address change notification procedures(18)Lookup applicable CFR section(s) that answers questions posed regarding FAA mechanic

privileges and limitations(19)Determine whether manufacturer’s service instructions are required by regulation or not(20)List the various sources of approved data and of acceptable data


(21)Explain the difference in requirements for a major repair/alteration and a minor repair/alteration

(22)Explain the difference between “approved data” (required for major repair/alteration) and “acceptable data” (required for minor repair/alteration)


(1) Hazards that can result from incomplete or inaccurate documentation(2) Use of Material Safety Data Sheets (MSDS)(3) Inoperative equipment(4) Discrepancy records or placards(5) The use of useable on codes in parts manuals(6) Determining the serial number effectivity of an item(7) Limitations of a certificate and/or rating(8) Understanding recency of experience

(J) Aviation Physics


(1) Matter and energy(2) Work, power, force and motion(3) Heat and pressure(4) Gas law and fluid mechanics(5) Theory of flight (aerodynamics)(6) Atmospheric conditions(7) Bernoulli’s principle and Newtonian law(8) Density altitude(9) Aircraft flight controls(10)Aerodynamic aids including vortex generators, wing fences, and stall strips(11)Standard day(12)Forces of flight(13)Airfoils(14)Relationship between torque and preload in highly-stressed threaded fasteners.(15)Axes of flight – roll, pitch and yaw(16)Aircraft stability


(1) Convert temperature from Celsius to Fahrenheit or Fahrenheit to Celsius(2) Determine density altitude(3) Determine pressure altitude(4) Calculate force, area, or pressure in a specific application(5) Demonstrate the mechanical advantage of various types of levers(6) Design an inclined plane on paper, indicating the mechanical advantage(7) Identify changes in pressure and velocity as a fluid passes through a venturi(8) Design a mechanical pulley system(9) Determine density of a solid object with a specific gravity of less than one(10)Determine horsepower for a given weight, distance, and time(11)Calculate expansion due to temperature change



(1) Inadequate preload in highly stressed threaded fasteners(2) Precautions to ensure adequate preload when installing such fasteners(3) The change in aircraft and engine performance due to density altitude

(K) Inspections


(1) Measuring tools including calipers, micrometers and gauges(2) Calibration and tool accuracy(3) Nondestructive testing(4) Aircraft inspection programs(5) Aircraft inspection methods and tools(6) Focused inspections including aging aircraft, hard-landing, sudden stoppage, over-speed and

lightning strike


(1) Use calipers(2) Use micrometers(3) Use measurement gauges(4) Perform a dye penetrant inspection(5) Perform a magnetic particle inspection(6) Inspect aircraft for compliance with an AD(7) Identify NDT methods for composite, surface metal and subsurface metal defects


(L) Human Factors


(1) Safety culture and organizational factors(2) Human error principles(3) Event investigation(4) Human performance and limitations(5) Physical and social environment(6) Communication(7) Teamwork and leadership(8) Professionalism and integrity(9) Shift and task turnover(10)The “Dirty Dozen”(11) Use of safety goggles, respirators, hearing protection, safety shoes, and other protective

equipment and devices


(1) Filing an Aviation Safety Reporting System (ASRS) report(2) Briefing a shift turnover for continuity of work(3) Communicating a discrepancy found in a colleague’s work(4) Use of protective safety equipment


(1) Fatigue management and fitness for duty


(M) Foreign Object Elimination


(1) Tool and hardware accountability(2) Physical entry and personnel control(3) Reporting and investigation(4) Material handling(5) Parts protections(6) Hazardous materials(7) Wildlife and environmental effects(8) Foreign object damage effects



(N) Alert, Caution, and Warning Indications




(O) Principles of Troubleshooting

Section II: Airframe Structures

(A) Metallic Structures


(1) Inspection/testing of sheet metal structures(2) Types of sheet metal defects(3) Selection of sheet metals(4) Layout, and/or forming of sheet metal(5) Select Sheet metal rivets and hardware(6) Heat treatment of aluminum(7) Layout and bend sheet metal(8) Form sheet metal(9) Rivet layout(10)Rivet installation(11)Maintenance safety practices/precautions for sheet metal, and/or composite

materials/structures, and/or windows(12)Corrosion Preventive Compounds (CPCs)(13)Conversion coatings


(1) Install and remove conventional rivets(2) Inspect sheet metal(3) Select and install special fasteners(4) Properly use Manufacturer’s Structure Repair Manual(5) Prepare and install a patch to repair an aircraft or component


(6) Make a drawing of a repair including the number of rivets and size of sheet metal required(7) Remove a patch that was installed with rivets(8) Trim and form a piece of sheet metal to fit a prepared area(9) Fabricate a complex aluminum part in accordance with a drawing(10)Determine a rivet pattern for a specific repair given pitch, gauge, and edge distance(11)Install special fasteners of at least two different types(12)Countersink holes in sheet metal to .010 tolerance(13)Perform a repair on a damaged aluminum sheet


(1) Maintenance safety practices/precautions for sheet metal structures.

(B) Non-Metallic Structures


(1) Wood structures(2) Aircraft covering(3) Composite structures(4) Composite core materials(5) Composite manufacturing methods(6) Composite structure inspection procedures(7) Plastics inspection and repair(8) Glass inspections(9) Types and/or general characteristics of wood used in aircraft structures(10)Maintenance safety practices for windows


(1) Select and install fasteners on composite structures(2) Perform a hot-bond repair of a composite structure(3) Inspect and repair fiberglass (4) Inspect composite, plastic, or glass-laminated structures(5) Inspect acrylic type windshields(6) Identify window enclosure materials(7) Prepare composite surface for painting(8) Inspect pilot seat and seatbelt to include technical standard order (TSO) markings


(1) Maintenance safety practices(2) Composite material storage and shelf life(3) Factors inhibiting inspection of wood structures or repair(4) Hazards associated with using the wrong type of glue for wood structure repairs(5) Factors involved in accuracy for use of using and designing aircraft drawings

(C) Welding


(1) Flame welding gasses(2) Storage/handling of welding gasses(3) Flame welding practices and techniques


(4) Inert-gas welding practices and techniques(5) Purpose and types of shielding gasses(6) Characteristics of acceptable welds(7) Characteristics of unacceptable welds(8) Types of steel tubing welding repairs(9) Procedures for weld repairs(10)Soldering preparation, types of solder, and/or flux usage(11)Welding and/or soldering safety practices/precautions


(1) Solder aircraft wire and connectors(2) Select torch tips(3) Select welding rods(4) Adjust oxyacetylene flame to neutral appearance(5) Perform a silver solder joint(6) Braze a lap joint(7) Locate the method of cleaning magnesium in preparation for welding(8) Fabricate a weld patch (diamond patch)(9) Perform oxyacetylene butt welds(10)Demonstrate electric arc welding(11)Select repair procedure for tubular structure(12)Inspect and check welds


(D) Assembly and Rigging


(1) Control cable(2) Control cable maintenance(3) Cable connectors(4) Cable guides(5) Control stops(6) Push pull tubes(7) Torque tubes(8) Bell cranks(9) Flutter and flight control balance(10)Rigging of airplane or rotorcraft flight controls(11)Airplane or rotorcraft flight controls and/or stabilizer systems(12)Types of rotorcraft rotor systems(13)Rotor vibrations(14)Rotor blade tracking(15)Aircraft jacking procedures(16)Jacking safety practices/precautions


(1) Locate the procedures needed to rig a helicopter(2) Locate causes of vertical vibration in a two blade helicopter rotor system(3) Locate helicopter rotor blade tracking procedures


(4) Identify fixed-wing aircraft rigging adjustment locations(5) Identify control surfaces that provide movement about an aircraft's axes(6) Locate leveling methods and procedures(7) Verify alignment of an empennage(8) Verify alignment of landing gear(9) Inspect a primary and secondary flight control surface(10)Remove and/or reinstall a primary flight control surface(11)Assemble aircraft components(12)Inspect primary control cables(13)Install swaged cable terminals(14)Remove and reinstall a primary flight control cable(15)Adjust push-pull flight control systems(16)Balance a flight control surface


(E) Airframe Inspection (References: add 14 CFR part 43 to current list)


(1) Inspection requirements(2) Maintenance recordkeeping requirements(3) Welding inspections and checks(4) Aircraft doors, windows and interior furnishing inspections


(1) Accomplish an airframe conformity check(2) Perform an airframe inspection to include a records check(3) Perform a portion of a 100-hour/annual inspection in accordance with part 43, appendix D(4) Perform a portion of the conformity inspection on an airframe(5) Enter results of a 100-hour inspection in a maintenance record(6) Determine when the next annual and/or 100-hour inspection is required on a specific

aircraft(7) Determine compliance with a particular airworthiness directive(8) Provide a checklist for conducting a 100-hour inspection


(1) The applicant should be able to identify the health concerns when using paints and solvents.(2) The applicant should be able to identify the appropriate personal protective equipment for

working with paints and solvents.

Section III: Airframe Systems

(A) Landing Gear Systems


(1) Fixed and retractable landing gear systems(2) Fixed and retractable landing gear components(3) Landing gear struct servicing/lubrication(4) Steering systems


(5) Landing gear and warning system inspection, check and servicing(6) Brake assembly inspection(7) Anti-skid system components and operation(8) Wheel, brake and tire construction(9) Tire storage, care, and/or servicing(10)Position indicators


(1) Inspect and service a landing gear(2) Inspect, check and service an anti-skid system(3) Locate procedures for checking operation of an anti-skid warning system(4) Locate troubleshooting procedures for an anti-skid system(5) Jack aircraft(6) Perform a landing gear retraction(7) Inspect wheels, brakes and tires(8) Install brake lining(s) or brake assembly(9) Service landing gear and/or oil shock strut(10)Bleed air from a hydraulic brake system(11)Troubleshoot hydraulic brake systems(12)Remove, inspect, and/or install a wheel brake assembly(13)Inspect a tire for defects(14)Repair a defective tube(15)Locate tire storage practices(16)Replace air/oil shock strut air valve(17)Troubleshoot an air/oil shock strut(18)Service a nosewheel shimmy damper(19)Adjust nosewheel steering system(20)Inspect landing gear alignment(21)Replace master brake cylinder packing seals(22)Troubleshoot landing gear retract system(23)Troubleshoot aircraft steering system(24)Identify landing gear position system components(25)Troubleshoot landing gear position and/or warning systems(26)Identify landing gear warning system components(27)Inspect landing gear position indicating system(28)Repair landing gear position indicating systems(29)Describe the sequence of operation for a landing gear warning system(30)Remove, install, and/or adjust a landing gear down-lock switch(31)Inspect a brake for serviceability(32)Troubleshoot nosewheel shimmy


(1) Landing gear and/or tire and wheel safety practices/precautions(2) Correctly relieving pressure prior to strut or system disassembly

(B) Hydraulic and Pneumatic Systems



(1) Hydraulic system components and fluids(2) Hydraulic system operation(3) Hydraulic system servicing requirements(4) Hydraulic system inspection, check, servicing and troubleshooting(5) Pneumatic system types and components(6) Pneumatic system servicing requirements(7) Servicing, function, and/or operation of accumulators(8) Types of hydraulic/pneumatic seals and/or fluid/seal compatibility(9) Servicing hydraulic and/or pneumatic systems


(1) Identify different types of hydraulic fluids(2) Identify different packing seals(3) Install seals in a hydraulic component(4) Remove and install a selector valve(5) Check a pressure regulator and adjust as necessary(6) Remove, clean, and install a hydraulic system filter(7) Service a hydraulic system accumulator(8) Service a hydraulic system reservoir(9) Remove, install, and check an engine-driven hydraulic pump(10)Troubleshoot hydraulic power system(11)Purge air from a hydraulic system(12)Remove and/or install a system pressure relief valve(13)Troubleshoot a hydraulic power system leak(14)Troubleshoot a pneumatic power system leak(15)Service pneumatic brake system air bottles(16)Inspect a pneumatic air bottle for condition and determine service life (hydrostatic testing)(17)Adjust a pneumatic power system relief valve(18)Locate fluid servicing instructions and identify/select fluid for a given aircraft


(C) Environmental Systems


(1) Requirements for cabin environmental system(2) Pressurization systems(3) Air cycle systems(4) Vapor cycle system(5) Cabin heaters(6) Aircraft instrument cooling(7) Exhaust heat exchanger and/or system component(s) function, operation, and/or inspection

procedures(8) Combustion heater and/or system component(s) function, operation, and/or inspection

procedures(9) Vapor-cycle system and/or system component(s) operation, servicing and/or inspection

procedures(10)Air-cycle system and/or system component(s) operation and/or inspection procedures(11)Cabin pressurization and/or system component(s) operation and/or inspection procedures


(12)Types of oxygen systems and/or oxygen system component(s) operation


(1) Inspect, check, service and troubleshoot an oxygen system(2) Locate procedures for troubleshooting a cabin heater(3) Locate the procedures for protecting a refrigerant system from contamination during

replacement of a component(4) Locate sources of contamination in a refrigerant system(5) Locate the procedures for checking a combustion heater fuel system for leaks(6) Identify and describe the units in a refrigerant system in relation to each other(7) Locate the servicing procedures for a vapor-cycle air conditioning system(8) Locate the inspection requirements for a cabin heater system equipped with an exhaust

heat exchanger(9) Locate the procedures for inspecting an outflow valve in a pressurization system(10)Locate operating instructions for a refrigerant system(11)Locate instructions for the Inspection of a pressurization system


(1) Oxygen system maintenance procedures and safety precautions(2) Environmental precautions for dealing with Freon refrigeration

(D) Aircraft Instrument Systems


(1) Magnetic compass operation(2) Magnetic compass swinging procedures(3) Pressure indicating instruments(4) Temperature indicating instruments(5) Position Indication Sensors and instruments(6) Gyroscopic instruments(7) Direction indicating instruments(8) Instrument pneumatic systems(9) Pitot static system(10)Fuel quantity indicating systems(11)Warning systems(12)Range markings(13)Digital electronic instruments(14)Numbering systems and data conversion(15)Data buses and logic circuits(16)Integrated circuits(17)Fiber optics(18)Electronic displays(19)Electrostatic sensitive devises(20)Digital aircraft systems(21)Built in test equipment(22)Central maintenance computer system(23)Electronic flight instrument system(24)Engine indication and crew alerting system


(25)Heads-up guidance system


(1) Perform a static system pressure system leak test(2) Remove and install instruments(3) Install range marks on an instrument glass(4) Determine barometric pressure using an altimeter(5) Check pitot-static heat for proper operation(6) Check for proper indication of a manifold pressure gage(7) Perform a pitot-static system leak test(8) Inspect a magnetic compass(9) Locate procedures for troubleshooting a vacuum operated turn-and-bank instruments(10)Select proper altimeter for installation on a given aircraft(11)Remove and install a heated pitot tube(12)Identify exhaust gas temperature system components(13)Service a vacuum system filter(14)Check an altimeter system for certification for instrument flight rules (IFR)(15)Adjust gyro/instrument air pressure(16)Describe the effects of gyro precession on a directional gyro system(17)Locate and explain the purpose of an aircraft’s alternate air (static) source


(E) Communication and Navigation Systems (add to references: AC 43.13-2B)


(1) Radio operating principles(2) Radio components(3) Antennas, antenna inspection requirements, and mounting in the pressure vessel area of a

pressurized aircraft(4) Interphone systems(5) Systems including very high frequency (VHF), high frequency (HF), intercom, and SATCOM(6) Aircraft communication addressing and reporting system (ACARS)(7) Radio integrating system (AIS)(8) Emergency locator transmitter (ELT)(9) Automatic direction finder (ADF)(10)Very high frequency omnidirectional (VOR)(11)Distance measuring equipment (DME)(12)Instrument landing system (ILS)(13)Global positioning system (GPS)(14)Inertial navigation system (INS)(15)Traffic alert and collision warning system (TCAS)(16)Weather radar(17)Ground proximity warning systems(18)Warning systems(19)Auto-pilot theory, components and operation(20)Stability augmentation(21)Antennas and antenna inspection requirements(22)Surveillance transponders


(23)Automatic Dependent Surveillance Broadcast (ADS-B)


(1) Locate operating instructions for an autopilot system(2) Locate autopilot inspection procedures(3) List autopilot major components(4) Locate and identify navigation and/or communication antennas(5) Check very high frequency (VHF) communications for operation(6) Inspect a coaxial cable installation for security(7) Check an emergency locator transmitter for operation(8) Inspect ELT batteries for expiration date(9) Inspect electronic equipment mounting base for security and condition(10)Inspect electronic equipment shock mount bonding jumpers for resistance(11)Inspect static discharge wicks for security and/or resistance(12)Inspect a radio installation for security(13)Locate weather radar operating procedures(14)Identify transponder transmission line(15)Locate installation procedures for antennas including mounting and coaxial connections(16)Make a list of required placards for communication and navigation avionic equipment(17)Locate troubleshooting procedures for a takeoff warning system(18)Determine the adjustment requirements of a flap position warning system(19)Locate the adjustment procedures for a stall warning system(20)Locate procedures for checking pneumatic/bleed air overheat warning systems


(F) Aircraft Fuel Systems


(1) Fuel system types(2) Components including filters and selector valves(3) Aircraft fuel tanks(4) Fuel flow(5) Fuel quantity(6) Fuel transfer and defueling(7) Fuel dump systems


(1) Inspect, check, troubleshoot, or repair a fuel system(2) Operationally check fuel system(3) Inspect a metal fuel tank(4) Inspect a bladder fuel tank(5) Inspect an integral fuel tank(6) Seal a leak in an integral fuel tank(7) Check manually operated fuel valves for proper operation and/or leaks(8) Troubleshoot a fuel valve problem(9) Drain fuel system sumps(10)Service a fuel system strainer(11)Determine the increment of calibration of a direct reading fuel indicating system.


(12)Inspect a remote indicating fuel quantity system(13)Locate fuel system operating instructions(14)Locate fuel system inspection procedures(15)Locate fuel system crossfeed procedures(16)Locate fuel system required placards(17)Locate fuel system defueling procedures(18)Troubleshoot fuel pressure warning system(19)Locate troubleshooting procedures for fuel temperature systems(20)Remove and/or install a fuel quantity transmitter(21)Troubleshoot capacitative-type fuel quantity indicating system(22)Troubleshoot aircraft fuel systems(23)Remove and install a fuel selector valve


(1) Hazards associated with fuel system maintenance

(G) Aircraft Electrical Systems


(1) Generators(2) Alternators(3) Starter generators(4) Voltage regulators(5) DC generation systems(6) AC generation systems(7) DC power distribution systems(8) AC power distribution systems(9) Aircraft wiring sizes, types and selection(10)Aircraft wiring shielding(11)Aircraft lightning protection(12)Aircraft bonding(13)Aircraft lighting systems


(1) Inspect aircraft wiring to verify installation and routing(2) Perform wire terminating and splicing(3) Perform build-up and repair of connectors(4) Read wiring circuits and diagrams(5) Solder aircraft wiring(6) Troubleshoot an airframe electrical circuit(7) Install, check and service airframe electrical wiring, switches, and protective devises(8) Secure wire bundles(9) Determine an electrical load in a given aircraft system(10)Install bonding jumpers(11)Check output voltage of a direct current (DC) generator(12)Adjust voltage regulators(13)Check the resistance of an electrical system component(14)Check generator brush spring tension and/or service ability


(15)Inspect and check anti-collision, position, and/or landing lights for proper operation(16)Identify components in an electrical system(17)Identify cockpit lighting circuits(18)Troubleshoot a DC electrical system supplied by an alternating current (AC) electrical system(19)Identify components in an electrical schematic where AC is rectified to a DC voltage(20)Visually identify and describe operation of components in a constant speed drive (CSD) or

integrated drive generator (IDG)


(H) Ice and Rain Control Systems


(1) Aircraft icing causes/effects(2) Ice detection systems(3) Anti-ice systems and components(4) De-ice systems and components


(1) Inspect or operationally check pitot-static anti-ice system(2) Inspect or operationally check deicer boot(3) Clean a pneumatic deicer boot(4) Check an electrically-heated pitot tube system(5) Locate procedures for troubleshooting an electrically-heated pitot system(6) Inspect thermal anti-ice systems(7) Check an electrically-heated windshield(8) Inspect an electrically-operated windshield wiper system(9) Check an electrically or hydraulically-operated windshield wiper system(10)Replace blades on a windshield wiper system(11)Check pneumatic rain removal system(12)Check a rain repellent system(13)Locate inspection procedures for chemical rain protection of a windscreen


(I) Fire Protection Systems


(1) Types of fires and aircraft fire zones(2) Fire detection and warning systems(3) Fire detection system maintenance and inspection(4) Smoke and carbon monoxide detection systems(5) Fire extinguishing agents and types of extinguishing systems(6) Fire extinguishing system maintenance and inspection requirements


(1) Inspect, check, service, troubleshoot and/or repair an aircraft fire detection and extinguishing system

(2) Determine proper container pressure for an installed fire extinguisher system


(3) Identify maintenance procedures for fire detection and/or extinguishing system(s) and/or system component(s)

(4) Inspect and/or check a smoke and/or toxic gas detection system(5) Locate inspection procedures for carbon monoxide detectors(6) Locate procedures for checking a smoke detection system(7) Locate the procedures for inspecting a thermal switch fire detection system(8) Inspect a thermocouple fire warning system(9) Inspect fire protection system CO2 cylinders(10)Inspect conventional CO2 fire protection system(11)Check a conventional CO2 fire-protection system(12)Check a fire protection system refrigerant bottle charge pressure(13)Inspect a high-rate-of-discharge fire-extinguisher system(14)Locate troubleshooting procedures for a high-rate-of-discharge fire-extinguisher system(15)Inspect refrigerant bottle discharge cartridge(16)Check refrigerant bottle discharge circuit(17)Inspect fire-extinguisher bottle or cylinder for hydrostatic test date


(J) Rotorcraft Fundamentals


(1) Rotorcraft aerodynamics(2) Fundamentals of rotors(3) Flight controls(4) Transmissions(5) Rig rotary wing aircraft(6) Design and operation of rotor systems(7) Flutter and flight control balance(8) Rotor blade tracking



Section IV: Powerplant Theory and Maintenance

(A) Reciprocating Engines


(1) Types of engines(2) Engine operating principles/theory of operation(3) Diesel engine operating principles/theory of operation(4) Horizontally opposed engine construction and internal components(5) Radial engine construction and internal component differences(6) Storage and preservation


(1) Remove, inspect and install cylinder assembly(2) Remove and install reciprocating engine


(3) Ground operate and troubleshoot reciprocating engine(4) Dimensionally inspect a crankshaft(5) Install piston and/or knuckle pin(s)(6) Identify the parts of a cylinder(7) Identify the parts of a crankshaft(8) Identify and inspect various types of bearings(9) Replace packing seals in a push rod housing(10)Check and/or rig cable and push-pull engine controls(11)Adjust valves (12)Inspect engine mounts(13)Demonstrate engine starting procedures(14)Locate top dead-center position of a piston(15)Check cylinder compression with differential compression tester


(1) What considerations need to be taken when performing an engine run

(B) Turbine Engines


(1) Engine operating principles/ theory of operation(2) Types of engines(3) Engine terms and definitions(4) Checks necessary to verify proper operation(5) Turbine engine troubleshooting procedures(6) Procedures required after the installation of a turbine engine(7) Causes for turbine engine performance loss(8) Turbine engine components including inlet ducts, centrifugal compressors, axial-flow

compressors, turbofans, blade design and attachment, diffuser section, combustion section, turbine section, exhaust

(9) Bearings and seals(10)Accessory drives(11)Bleed air systems(12)Difference and uses between turboprop, turbofan, and turboshaft engines(13)Storage and preservation(14)Auxiliary power unit(s)


(1) Remove and install turbine engine(2) Ground operate and troubleshoot turbine engine(3) Identify characteristics of different turbine compressors(4) Identify types of turbine blades(5) Identify major components of turbine engines(6) Identify airflow direction and pressure changes in turbojet engines(7) Remove and install a fuel nozzle in a turbine engine(8) Inspect combustion liners(9) Locate and describe the procedures for the adjustment of a fuel control unit(10)Perform turbine engine inlet guide vane and compressor blade inspection


(11)Locate and describe the installation or removal procedures of a turbine engine(12)Locate and explain the procedures for trimming a turbine engine(13)Identify damaged turbine blades(14)Identify causes for engine performance loss(15)Identify damaged inlet nozzle guide vanes(16)Inspect the first two stages of a turbine fan or compressor for foreign object damage


(1) What should be considered when operating a turbine engine(2) What precautions should be taken when performing maintenance on a turbine engine

ignition system

(C) Engine Inspection


(1) Inspection and maintenance record requirements and entries


(1) Perform a compression check(2) Accomplish a powerplant conformity check(3) Perform a powerplant inspection to include a records check(4) Inspect an engine for compliance with applicable ADs(5) Identify an engine by type without reference material other than the data plate(6) Determine engine conformity with engine specifications or type certificate data sheet(7) Construct a checklist for a 100-hour inspection on an engine(8) Perform a portion of the 100-hour inspection on an engine(9) Check engine controls for proper operation and proper adjustment(10)Identify what type and where fluids may leak(11)Inspect aircraft engine accessories for conformity(12)Inspect aircraft engine for service bulletin compliance(13)Inspect aircraft turbine engine for records time left on any life limited parts(14)Perform an over temperature inspection(15)Perform an engine over torque inspection(16)Perform an aircraft engine over speed inspection(17)Determine conformity of installed spark plugs or igniters


Section V: Powerplant Systems and Components

(A) Engine Instrument Systems


(1) Fuel flow indicating systems(2) Temperature measuring systems(3) Tachometers(4) Manifold pressure(5) Pressure measuring systems(6) Position indicating system


(7) Torquemeters(8) Engine pressure ratio(9) Engine indicating and crew alerting system(10)Full authority digital engine controls(11)Electronic centralized aircraft monitoring(12)Range markings


(1) Inspect, check and troubleshoot an engine instrument system(2) Troubleshoot a fuel flow and/or low fuel pressure indicating system(3) Remove, inspect, and/or install a fuel-flow transmitter(4) Remove, inspect, and/or install fuel flow gage(5) Identify various components installed on an engine(6) Check fuel flow transmitter power supply(7) Inspect tachometer markings for accuracy(8) Perform resistance measurements of thermocouple indication system(9) Remove, inspect, and/or install turbine engine exhaust gas temperature (EGT) harness(10)Troubleshoot a turbine engine pressure ratio (EPR) system(11)Troubleshoot a tachometer system(12)Replace a cylinder head temperature thermocouple(13)Inspect EGT probes(14)Locate and inspect engine low fuel pressure warning system components(15)Check aircraft engine manifold pressure gage for proper operation(16)Inspect a leaking manifold pressure system(17)Repair a low oil pressure warning system(18)Troubleshoot an EGT indicating system


(B) Engine Fire Protection Systems


(1) Types of fires and engine fire zones(2) Fire detection warning system operation(3) Fire detection system maintenance and inspection requirements(4) Fire extinguishing agents, types of systems, and operation(5) Fire extinguishing system maintenance and inspection


(1) Inspect, check, service, troubleshoot and repair an engine fire detection and extinguishing system

(2) Identify fire detection sensing units(3) Inspect fire detection continuous loop system(4) Inspect fire detection thermal switch or thermocouple system(5) Locate and explain troubleshooting process for a fire detection system(6) Inspect and explain the purpose of engine fire extinguisher system blowout plugs(7) Inspect a turbine engine fire extinguisher agent container pressure(8) Check fire extinguisher discharge circuit(9) Troubleshoot a fire protection system


(10)Inspect fire extinguishing agent(11)Inspect a fire extinguisher container discharge cartridge(12)Inspect fire extinguisher system for hydrostatic test requirements(13)Check flame detectors for operation(14)Check operation of firewall shutoff valves(15)Check operation of master caution press-to-test and troubleshoot faults(16)Identify continuous-loop fire detection system components


(C) Engine Electrical Systems


(1) Generators(2) Alternators(3) Starter generators(4) Voltage regulators(5) DC generation systems(6) AC generation systems(7) Engine wiring and differences from airframe wiring


(1) Inspect, check, and service engine electrical wiring, switches, and protective devices(2) Use publications to determine replacement part numbers(3) Replace an engine-driven generator or alternator(4) Service an engine-driven DC generator in accordance with manufacturer’s instructions. (5) Parallel a dual-generator electrical system. (6) Inspect an engine-driven generator or alternator(7) Troubleshoot a voltage regulator in an aircraft electrical generating system(8) Repair an engine direct-drive electric starter(9) Troubleshoot a direct-drive electric starter system(10)Fabricate an electrical system cable(11)Determine wire size for engine electrical system(12)Repair a broken engine electrical system wire(13)Replace a wire bundle lacing(14)locate, explain, and interpret a wiring schematic for a powerplant system(15)Fabricate a bonding jumper(16)Inspect a turbine engine starter generator(17)Fabricate solderless terminals(18)Inspect engine electrical connectors


(1) Hazards of improper polarity when performing electrical system maintenance

(D) Lubrication Systems


(1) Functions and characteristics of engine oils(2) Types and grades of engine oil


(3) Lubrication system operation and components(4) Wet-sump system(5) Dry-sump system(6) Detectors


(1) Inspect and service a lubrication system(2) Determine the correct type of oil for a specific engine(3) Identify turbine engine oil filter bypass indicator(4) Determine approved oils for different climatic temperatures(5) Locate and describe procedures for changing turbine engine oil(6) Inspect an oil filter or screen(7) Check engine oil pressure(8) Perform oil pressure adjustment(9) Identify oil system components(10)Replace an oil system component(11)Identify oil system flow(12)Perform an engine pre-oil operation(13)Troubleshoot an engine oil pressure malfunction(14)Troubleshoot an engine oil temperature system


(E) Ignition and Starting Systems


(1) Ignition system theory(2) Spark plug theory(3) Shower of sparks and impulse coupling(4) Three electrical circuits of a magneto system(5) Solid state ignition systems(6) Full authority digital engine controls(7) Engine starters with Bendix or right-angle drive(8) System components(9) Starters


(1) Repair and time magneto internally(2) Time magneto to engine(3) Remove, clean and install spark plug(4) Perform an ignition system operational check and inspection(5) Inspect, troubleshoot and repair an ignition system(6) Inspect, check and troubleshoot an electrical starting system(7) Disassemble, identify components, and reassemble a magneto(8) Inspect magneto breaker points(9) Set internal timing of a magneto(10)Demonstrate understanding of the difference between a high tension and a low tension

ignition system(11)Inspect an ignition harness


(12)Check a magneto on a test bench(13)Check serviceability of condensers(14)Check ignition coils(15)Check ignition leads(16)Troubleshoot ignition switch circuit(17)Inspect and check gap of spark plugs(18)Identify the correct spark plugs used for replacement installation(19)Install and/or time a magneto on an engine. (20)Troubleshoot a turbine or reciprocating engine ignition system(21)Identify the correct ignitor plug and replace turbine engine igniter plugs(22)Troubleshoot turbine engine igniters(23)Inspect turbine engine ignition system


(1) Hazards associated with advanced and retarded ignition timing (piston engine)(2) Advanced timing is much more dangerous than retarded timing

(F) Fuel Metering Systems


(1) Engine pumps and filters(2) Engine mixture requirements(3) Float carburetor theory, components, operation and adjustments(4) Pressure carburetor adjustments(5) Continuous flow fuel injection theory, components, operation, troubleshooting and

adjustment(6) Full authority digital engine controls(7) Hydromechanical system design and components(8) Fuel nozzles and manifolds(9) Flow test fuel nozzle


(1) Inspect, troubleshoot, and repair a fuel metering system(2) Remove, inspect, and install a turbine engine fuel nozzle(3) Identify carburetor components(4) Interpret diagram showing fuel and air flow through float-type and/or pressure type

carburetor(5) Remove and/or install a main metering jet in a carburetor(6) Service a carburetor fuel inlet screen(7) Identify carburetor air-bleed system(8) Identify the main discharge nozzle in a pressure carburetor(9) Check the float level on a float-type carburetor(10)Inspect float needle and/or seat in a float-type carburetor(11)Identify, remove, and/or install a float-type carburetor(12)Adjust idle speed and/or mixture(13)Describe the conditions that may result in turbine engine RPM overspeed(14)Describe the conditions that may result in pressure carburetor engine with slow acceleration


(15)Describe the conditions that may result in malfunctions in a pressure-injection carburetor fuel regulator unit

(16)Set or position fuel metering cockpit controls for engine start(17)Locate procedures to set part-power and install the stop on a turbine engine fuel control


(G) Engine Fuel Systems


(1) Inspection requirements for an engine fuel system(2) Checks of fuel systems to verify proper operation(3) troubleshooting an engine fuel system(4) Procedure for inspection of an engine driven fuel pump for leaks and security(5) Function and/or operation of one or more types of fuel pumps(6) Function and/or operation of one or more types of fuel valves(7) Function and/or operation of engine fuel filters


(1) Identify components of an engine fuel system(2) Remove and/or install an engine-driven fuel pump(3) Check a remotely operated fuel valve(4) Rig a remotely operated fuel valve(5) Inspect a main fuel filter assembly for leaks(6) Check fuel boost pumps for correct pressure(7) Inspect fuel boost pump(8) Locate and identify a turbine engine fuel heater(9) Check fuel pressure warning light function(10)Adjust fuel pump fuel pressure(11)Inspect engine fuel system fluid lines and/or components(12)Troubleshoot abnormal fuel pressure(13)Troubleshoot a turbine engine fuel heater system(14)Remove, clean, and/or replace an engine fuel strainer(15)Troubleshoot engine fuel pressure fluctuation(16)Inspect fuel selector valve(17)Determine correct fuel nozzle spray pattern(18)Locate and identify fuel selector placards


(1) Safety considerations during fuel system maintenance

(H) Induction and Engine Airflow Systems


(1) Induction system design(2) Induction system icing(3) Superchargers(4) Turbochargers and controls(5) Engine anti-ice system


(6) Compressor bleed(7) Compressor/turbine case cooling


(1) Inspect a carburetor preheat system(2) Check a carburetor heater box shutter for full travel(3) Check carburetor heat(4) Identify probable location of induction ice(5) Identify turbine engine air intake ice protected areas(6) Service an induction air filter(7) Inspect a turbocharger for exhaust leaks and security(8) Check a turbocharger for operation(9) Inspect an induction system for obstruction(10)Inspect an air intake manifold for leaks(11)Troubleshoot engine that idles poorly(12)Troubleshoot engine that fails to start(13)Identify components of a turbocharger induction system(14)Troubleshoot a carburetor heat system(15)Troubleshoot turbine engine air inlet ice protection system(16)Identify turboprop engine ice and rain protection system components(17)Inspect a turbocharger(18)Inspect a carburetor air inlet duct attachment.


(I) Engine Cooling Systems


(1) Design and components(2) Inspection and maintenance requirements(3) Required inspection on an engine cooling system(4) Operation of cowl flaps, and how cooling is accomplished(5) How turbine engine cooling is accomplished(6) Cooling of engine bearings and other parts on turbine engines(7) The importance of proper engine baffle and seal installation(8) The operation of a heat exchanger(9) The function and operation of an augmentor cooling system(10)Rotorcraft engine cooling systems


(1) Perform an induction and cooling system inspection(2) Repair cylinder head baffle(3) Inspect cylinder head baffle plates(4) Check cowl flap travel(5) Inspect cylinder cooling fins(6) Repair cylinder cooling fin(7) Identify location of turbine engine insulation blankets(8) Identify turbine engine cooling air flow(9) Troubleshoot a cowl flap system


(10)Troubleshoot an engine cooling system(11)Identify exhaust augmentor cooled engine components(12)Identify rotorcraft engine cooling components(13)Troubleshoot rotorcraft engine cooling system(14)Inspect rotorcraft engine cooling system(15)Inspect engine exhaust augmentor cooling system


(J) Engine Exhaust and Reverser Systems


(1) Exhaust system and/or nozzle design(2) Cabin and carburetor heat(3) Mufflers(4) Noise suppressors(5) Design and operation of thrust reversers(6) Cowl load sharing


(1) Perform an exhaust system inspection(2) Identify the type of exhaust system on a particular aircraft(3) Inspect exhaust system components(4) Repair exhaust system components(5) Inspect reciprocating engine exhaust system(6) Inspect exhaust system internal baffles or diffusers(7) Remove and install exhaust ducts(8) Inspect exhaust heat exchanger(9) Perform a heat exchanger collector tube leak test(10)Inspect a turbine engine exhaust nozzle(11)Check turbine thrust reverser system(12)Troubleshoot a thrust reverser system(13)Troubleshoot exhaust muffler heat exchanger(14)Repair exhaust system leak(15)Locate and explain procedures for performing exhaust system leak checks


(K) Propellers


(1) Propeller theory of operation including forces and aerodynamic factors(2) Types of propellers and blade design(3) Pitch control(4) Operation, synchronizing and ice protection(5) Reciprocating engine constant speed propellers and governors(6) Turbine engine propellers and governors(7) Operation of turbine engine propellers(8) Checks necessary to verify proper operation of propeller systems(9) Procedures for proper application of propeller lubricants


(10)Installation or removal of a propeller(11)Measurement of blade angle with a propeller protractor(12)Repairs classified as major repairs on an aluminum propeller(13)Reference data for reducing the diameter of a type certificated propeller(14)Operation of propeller system component(s)(15)Propeller governor components and operation(16)Theory and operation of various types of constant speed propellers(17)Function and operation of propeller synchronizing systems(18)Function and operation of propeller ice control systems


(1) Remove and install an aircraft engine propeller(2) Check blade tracking(3) Inspect an aircraft propeller for airworthiness(4) Measure blade angle with a propeller protractor(5) Repair an aluminum alloy propeller blade(6) Perform propeller lubrication(7) Locate and explain the procedures for balancing a fixed-pitch propeller(8) Remove, inspect, and/or install a propeller governor(9) Remove and/or install a propeller(10)Check track of a propeller(11)Adjust a propeller governor(12)Determine propeller blade pitch angle(13)Determine propeller critical range of operation(14)Describe the operation of a propeller(15)Inspect a wooden propeller metal tipping(16)Check propeller blade feather angle(17)Repair metal propeller leading edges, trailing edges or tips that have nicks, scratches, and

cuts and determine what minor propeller alterations are acceptable using the appropriate type certificate data sheet

(18)Clean an aluminum alloy propeller(19)Inspect a turboprop propeller system(20)Perform a 100-hour inspection on a propeller(21)Troubleshoot a turboprop propeller system(22)Repair anti-icing or de-icing system on a propeller


Documents

Basic · Web viewIdentify procedures for and walk-through steps for weighing an aircraft Perform weight and balance calculations Calculate ballast/weight shift Check aircraft weighing