Operational Check of RAT Manual Deployment and Functional Check of RAT using.pdf

7/25/2019 Operational Check of RAT Manual Deployment and Functional Check of RAT using.pdf

1/20

TASK 29-22-00-720-004

Operational Check of RAT Manual Deployment and Functional Check of RAT using Ground Test Unit, followed by Check of Filter Indicator

WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU _______ START A TASK ON OR NEAR:

- THE FLIGHT CONTROLS - THE FLIGHT CONTROL SURFACES - THE LANDING GEAR AND THE RELATED DOORS - COMPONENTS THAT MOVE.

WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE _______ CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.

WARNING : MAKE SURE THAT THE RAT TRAVEL RANGE IS CLEAR BEFORE YOU _______ EXTEND/RETRACT THE RAT.

WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING _______ GEAR.

1. Reason for the Job __________________

Refer to the MPD TASK: 292000-08

NOTE : It is permitted to use the tools Part Numbers AGE11212 and AE89415Z ____ as an alternative to the tool Part Number HFK02.

2. Job Set-up Information ______________________

A. Fixtures, Tools, Test and Support Equipment

------------------------------------------------------------------------------- REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------

No specific circuit breaker(s) safety clip(s)R No specific hydraulic ground-power cart (reservoir capacity min.R 150 l (39.626 USgal)). No specific safety barriers No specific warning notice(s) No specific Torque Wrench : range 36.00 to 220.00 lbf.in (0.40 to 2.60 m.daN) AE89415Z 1 RAT - FLOW CONTROL TEST KIT AGE10600C 1 CHECK - MOTOR GROUND, RAT

AGE11212 1 GROUND - CHECKOUT UNIT, RAT HFK02 1 FLOW CONTROL TEST KIT - RAT

EFF : 210-299, 301-399, 401-499, Page 573 29-22-00 Config-1 May 01/06 TAI


2/20

------------------------------------------------------------------------------- REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------

98D29207550000 1 PROTECTION EQUIPMENT - RAT 98D29207550001 1 PROTECTION EQUIPMENT - RAT 98D29208246001 1 SAFETY DEVICE - RAT

B. Referenced Information

------------------------------------------------------------------------------- REFERENCE DESIGNATION -------------------------------------------------------------------------------

12-13-29-600-001 Servicing of the Ram Air Turbine (RAT) 2GE 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power 29-22-00-869-006 Retraction of the Ram Air Turbine (RAT) on the Ground 29-22-51-000-013 Removal of the RAT Filter Element 29-22-51-400-013 Installation of the RAT Filter Element 29-22-51-680-003 Draining of the Ram Air Turbine Oil Drain Tank 31-60-00-860-001 EIS Start Procedure 31-60-00-860-002 EIS Stop Procedure 29-22-51-000-013 Removal of the RAT Filter Element (for corrective action) 29-22-51-400-013 Installation of the RAT Filter Element (for corrective action) 29-22-53-000-010 Removal of the RAT Ejection Jack (1GE) (for corrective action) 29-22-53-400-010 Installation of the Ejection Jack (1GE) (for

corrective action) 29-22-00-991-023 Fig. 509 29-22-00-991-024 Fig. 510 29-22-00-991-030 Fig. 511

3. Job Set-up __________

Subtask 29-22-00-941-086

A. Safety Precautions

(1) Put the safety barriers in position.

(2) Put the warning notice(s) in position to tell persons that the RAT is in operation.

EFF : 210-299, 301-399, 401-499, Page 574 29-22-00 Config-1 Aug 01/05 R TAI


3/20

Subtask 29-22-00-010-084

B. Open the access doors 197EB and 195BB.

Subtask 29-22-00-865-118

C. Make sure that this(these) circuit breaker(s) is(are) closed:

------------------------------------------------------------------------------- PANEL DESIGNATION IDENT. LOCATION ------------------------------------------------------------------------------- 49VU HYD/HYD/PRESS/XMTR 1841GN C11 49VU HYD/RAT/CTL 2801GE D14 106VU CSM/G /EV/MAN/SPLY 6XE B04 121VU HYDRAULIC/RAT/SPLY/EXTN/SOL1 2803GE P33

Subtask 29-22-00-865-119

D. Open, safety and tag this(these) circuit breaker(s):

------------------------------------------------------------------------------- PANEL DESIGNATION IDENT. LOCATION ------------------------------------------------------------------------------- 105VU ELEC/CSM/G /EV AUTO/SPLY 7XE C01

Subtask 29-22-00-860-120

E. Aircraft Maintenance Configuration

(1) Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).

(2) Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. TASK 31-60-00-860-001)

(3) Make sure that the SAFETY DEVICE - RAT (98D29208246001) is removed from the RAT stowage compartment.

4. Procedure _________

WARNING : MAKE SURE THAT THE RAT TRAVEL RANGE IS CLEAR BEFORE YOU _______ EXTEND/RETRACT THE RAT.

NOTE : Make sure that a second person is in position to observe the ____ extension of the RAT before you push the MAN RAT ON pushbutton.



4/20

Subtask 29-22-00-710-076

A. Operational Test of the Manual Deployment of the RAT

------------------------------------------------------------------------------- ACTION RESULT -------------------------------------------------------------------------------

1. On the ECAM control panel: On the lower ECAM DU: - press the HYD pushbutton. - the HYD page is shown. - the RAT triangle symbol is shown white.

2. On the overhead panel 40VU: At the RAT stowage area:

CAUTION : DO NOT PUSH THE RAT MAN _______ ON PUSHBUTTON SWITCHES FOR MORE THAN 1 MINUTE YOU WILL CAUSE DAMAGE IF YOU PUSH THE RAT MAN ON PUSHBUTTON SWITCHES FOR MORE THAN 1 MINUTE.

- lift the guard and push the RAT - the RAT fully extends. MAN ON switch. On the glare shields:

- the MASTER CAUTION light comes on and you can hear a single chime.

On the HYD page of the lower ECAM DU:

- the RAT triangle symbol changes to green when the RAT is fully extended.

On the upper ECAM DU:

- the legends RAT FAULT and RAT OUT are shown in amber.

3. Retract the RAT (Ref. TASK 29-22- The RAT retracts in its stowage area. 00-869-006).

4. On the overhead panel 21VU: At the RAT stowage area:



5/20

------------------------------------------------------------------------------- ACTION RESULT ------------------------------------------------------------------------------- - lift the guard and push the MAN - the RAT extends. ON/AUTO switch in the EMER ELEC PWR section. On the glareshields:

- the MASTER CAUTION lights come on and you can hear a single chime.


- the RAT triangle symbol changes to green when the RAT is fully extended.

On the upper ECAM DU:

- the legends RAT FAULT and RAT OUT are shown in amber.

Subtask 29-22-00-865-120

B. Open, safety and tag this(these) circuit breaker(s):

------------------------------------------------------------------------------- PANEL DESIGNATION IDENT. LOCATION ------------------------------------------------------------------------------- 121VU HYDRAULIC/RAT/SPLY/EXTN/SOL1 2803GE P33

Subtask 29-22-00-210-080

C. Inspection of the RAT:

(1) Make sure that the RAT down lock is engaged.

R (a) Manually push the RAT in the retraction direction.

(b) If you push the RAT with a sudden force, the RAT can move in the retraction direction. This is permitted.

(c) If you push the RAT with a constant force, the RAT can move in the retraction direction. This is not permitted, and you must remove the actuator (Ref. TASK 29-22-53-000-010) and (Ref. TASK 29-22-53-400-010).

(2) Make sure that the RAT and the attachment parts are in the correct condition.

EFF : 210-299, 301-399, 401-499, Page 577 29-22-00 Config-1 Feb 01/06 TAI


6/20

(3) Examine the oil level sight glass on the gear box housing (you must see oil on the sight glass). Add oil if necessary (Ref. TASK 12-13- 29-600-001).

(4) Do a check of the differential pressure indicator of the RAT filter:

(a) Make sure that the differential pressure indicator is in.

(b) If the the differential pressure indicator is out, replace the RAT filter element (Ref. TASK 29-22-51-000-013) and (Ref. TASK 29-22-51-400-013).

(5) Make sure that the switch 28V DC on the RAT control panel is in the OFF position.

Subtask 29-22-00-480-055

D. Installation of the Ground Support Equipment (Ref. Fig. 509/TASK 29-22-00-991-023, 510/TASK 29-22-00-991-024, 511/TASK 29-22-00-991-030)

R (1) Install the CHECK - MOTOR GROUND, RAT (AGE10600C) on the RAT asR follows:

NOTE : If the CHECK - MOTOR GROUND, RAT (AGE10600C) is not available, ____ you can also use the subsequent check motors: - AGE10600AR - Tronair AGE10600B - Testfuchs RATMK - Hycom HRT01.

(a) Remove the bolts (3), the washers (2) and the cover plate (1).

(b) Install the CHECK - MOTOR GROUND, RAT (4), the washers (2) and the bolts (3).

(c) TORQUE the bolts (3) to between 86 and 95 lbf.in (0.97 and 1.07 m.daN).

R (d) Connect the hydraulic hoses of the CHECK - MOTOR GROUND, RAT to aR hydraulic ground-power cart (reservoir capacity min. 150 lR (39.626 USgal)).



7/20

Installation of the RAT Ground-Check Motor and Location of the RAT Indicators Figure 509/TASK 29-22-00-991-023



8/20

Installation of the RAT Ground-Checkout Unit and the Flow Control Test Kit Figure 510/TASK 29-22-00-991-024



9/20

Installation of the RAT Flow-Control Test Kit Figure 511/TASK 29-22-00-991-030



10/20

R NOTE : The motor flow during the test is approximately 118 l.min ____R (31.1720 USgal.mn) +/- 8 l.min (2.1133 USgal.mn) at 206R bar (2987.7766 psi). For the function test of theR RAT-governor, the motor flow will increase. Thus the capacity of the ground power cart must be 140 l.min (36.9837 USgal.mn) at 206 bar (2987.7766 psi). If the hydraulic ground-power cart has an adjustable flow

control, it must be set to the max. flow during the complete test.

(e) If the CHECK - MOTOR GROUND, RAT has an adjustment valve, make sure that the valve is in the fully open position.

(2) Installation of the RAT Flow Control Test Kit.

(a) If you use the RAT - FLOW CONTROL TEST KIT (AE89415Z) and the GROUND - CHECKOUT UNIT, RAT (AGE11212) (refer to the Reason for Job statement, Paragraph 1. for more tool data):

1 Connect the hydraulic hoses of the RAT - FLOW CONTROL TEST KIT _ (AE89415Z) to the ground connectors of the ground service panel of the Blue hydraulic system.

NOTE : If the RAT - FLOW CONTROL TEST KIT (AE89415Z) is not ____ available, you can also use the subsequent flow control test kits: - Tronair 13-6600-3600 - Testfuchs PGRAT1.

a Make sure that the RAT - FLOW CONTROL TEST KIT is correctly _ calibrated (refer to the vendor instructions).

2 Install the PROTECTION EQUIPMENT - RAT (98D29207550000) or the _ PROTECTION EQUIPMENT - RAT (98D29207550001).

3 Connect the GROUND - CHECKOUT UNIT, RAT (AGE11212) to the _ connector 3GE-B on the RAT control panel.

(b) If you use the FLOW CONTROL TEST KIT - RAT (HFK02):

1 Connect the hydraulic hoses of the FLOW CONTROL TEST KIT - RAT _ to the ground connectors of the ground service panel of the Blue hydraulic system.

2 Install the PROTECTION EQUIPMENT - RAT (98D29207550000) or the _

PROTECTION EQUIPMENT - RAT (98D29207550001).



11/20

3 Connect the electrical connector of the FLOW CONTROL TEST KIT _ - RAT to the connector 3GE-B on the RAT control panel.

Subtask 29-22-00-865-121

E. Make sure that this(these) circuit breaker(s) is(are) closed:

------------------------------------------------------------------------------- PANEL DESIGNATION IDENT. LOCATION ------------------------------------------------------------------------------- 49VU HYD/RAT/CTL 2801GE D14

Subtask 29-22-00-210-081

F. Lamp Test on the RAT Control Panel

(1) On the RAT control panel 3GE push and hold the LAMP TEST switch in the TEST position: - the ACTUATOR PRESSURE warning lamp comes on (red) - the INTERLOCK WARNING lamp comes on (amber) - the RAT STOWED lamp comes on (green).

(2) Release the LAMP TEST switch, each lamp goes out.

Subtask 29-22-00-720-059

G. Functional Test of the RAT (Spin-Up and Governing Test) with the RAT - FLOW CONTROL TEST KIT (AE89415Z) and the GROUND - CHECKOUT UNIT, RAT (AGE11212)

WARNING : KEEP ALL PERSONS AWAY FROM THE AREA WHEN YOU PRESSURIZE THE _______ BLUE HYDRAULIC SYSTEM. WHEN YOU PRESSURIZE THE BLUE HYDRAULIC

SYSTEM, THE RAT CAN TURN AT MORE THAN 5000 RPM. NOTE : Make sure that the Blue hydraulic system is serviceable. ____

NOTE : The operation of the Blue electric pump is necessary to pre-charge ____ the Blue hydraulic system accumulator for the spin-up and governing test.

NOTE : You must look at the temperature gage of the RAT - FLOW CONTROL ____ TEST KIT (AE89415Z) during the test. The test values can be out of tolerance if the temperature increases to more than 60 deg.C (140.00 deg.F). If so, you must stop the test, let the temperature decrease and repeat the test.

EFF : 210-299, 301-399, 401-499, Page 583 29-22-00 Config-1 May 01/06 R TAI


12/20

------------------------------------------------------------------------------- ACTION RESULT -------------------------------------------------------------------------------

1. On the GROUND CHECKOUT UNIT On the GROUND CHECKOUT UNIT (GCU): (GCU):

- Set the POWER ON/OFF switch to - the POWER light comes on. ON. - the SPEED and the PRESSURE indicators show the digit 8 for approximately 2 seconds.

2. Adjust the flow on the RAT - FLOW CONTROL TEST KIT to 0 l.min (0.0000 USgal.mn).

3. On the overhead panel 50VU: On the overhead panel 50VU on the - Set the P/BSW LEAK MEASUREMENT P/BSW: VALVES/B to OFF. - the OFF light comes on.

4. On the overhead panel 40VU: On the overhead panel 40VU: - Set the P/BSW BLUE/ELEC PUMP to AUTO. - the OFF light on the P/BSW is off.

5. On the overhead panel 50VU: On the overhead panel 50VU: - Set the P/BSW BLUE PUMP OVRD to ON. - the ON light in the P/BSW comes on.

The Blue electric pump starts.

On the HYD page of the lower ECAM DU: - a pressure of 3000 +/- 100 psi is shown.

At the RAT: - the turbine blades of the RAT do not turn.

6. On the hydraulic ground-power At the RAT: cart:

EFF : 210-299, 301-399, 401-499, Page 584 29-22-00 Config-1 May 01/06 R TAI


13/20

------------------------------------------------------------------------------- ACTION RESULT ------------------------------------------------------------------------------- CAUTION : YOU MUST STOP THE TEST _______ IMMEDIATELY IF THE RAT TURNS MORE THAN 5500 RPM.

R

R - supply a pressure of approx. - the turbine blades of the RAT turn.R 206 bar (2987.7766 psi). On the GCU:

R - the SPEED (RPM) indicator shows 5000R +/- 250 RPM.

R NOTE : The SPEED (RPM) indicator can ____R show 5000 +/- 250 RPM if theR pressure is less than 206 bar (2987.7766 psi).

R 7. Continue with the pump test.R

Subtask 29-22-00-720-062

H. Functional Test of the RAT (Spin-Up and Governing Test) with the FLOW CONTROL TEST KIT - RAT (HFK02)

WARNING : KEEP ALL PERSONS AWAY FROM THE AREA WHEN YOU PRESSURIZE THE _______ BLUE HYDRAULIC SYSTEM. WHEN YOU PRESSURIZE THE BLUE HYDRAULIC

SYSTEM, THE RAT CAN TURN AT MORE THAN 5000 RPM. NOTE : Make sure that the Blue hydraulic system is serviceable. ____

NOTE : The operation of the Blue electric pump is necessary to pre-charge ____ the Blue hydraulic system accumulator for the spin-up and governing test.

R NOTE : You must look at the temperature gage of the FLOW CONTROL TEST KIT ____R - RAT during the test. The test values can be out of tolerance ifR the temperature increases to more than 60 deg.C (140.00 deg.F). IfR so, you must stop the test, let the temperature decrease andR repeat the test.



14/20

------------------------------------------------------------------------------- ACTION RESULT -------------------------------------------------------------------------------

1. On the FLOW CONTROL TEST KIT - On the FLOW CONTROL TEST KIT - RAT: RAT:

R - Set the POWER ON/OFF switch to - the SPEED and the PRESSURE indicatorsR ON. show the digit 8 for approximately 2 seconds.

2. Adjust the flow on the FLOW CONTROL TEST KIT - RAT to 0 l.min (0.0000 USgal.mn).

3. On the overhead panel 50VU: On the overhead panel 50VU on the - Set the P/BSW LEAK MEASUREMENT P/BSW: VALVES/B to OFF. - the OFF light comes on.

4. On the overhead panel 40VU: On the overhead panel 40VU: - Set the P/BSW BLUE/ELEC PUMP to AUTO. - the OFF light on the P/BSW is off.

5. On the overhead panel 50VU: On the overhead panel 50VU: - Set the P/BSW BLUE PUMP OVRD to ON. - the ON light in the P/BSW comes on.

The Blue electric pump starts.


R - a pressure of 3000 +/- 100 psi isR shown.

At the RAT: - the turbine blades of the RAT do not turn.

6. On the hydraulic ground-power At the RAT: cart:

CAUTION : YOU MUST STOP THE TEST _______ IMMEDIATELY IF THE RAT TURNS MORE THAN 5500

RPM.



15/20

R - supply a pressure of approx. - the turbine blades of the RAT turn.R 206 bar (2987.7766 psi). On the FLOW CONTROL TEST KIT - RAT:

R - the SPEED (RPM) indicator shows 5000R +/- 250 RPM.

R NOTE : The SPEED (RPM) indicator can ____R show 5000 +/- 250 RPM if theR pressure is less than 206 bar (2987.7766 psi).

R 7. Continue with the pump test.R

Subtask 29-22-00-720-060

J. Functional Test of the RAT (Pump Test) with the RAT - FLOW CONTROL TEST KIT (AE89415Z) and the GROUND - CHECKOUT UNIT, RAT (AGE11212)

------------------------------------------------------------------------------- ACTION RESULT -------------------------------------------------------------------------------

1. On the overhead panel 40VU: On the overhead panel 40VU: - Set the P/BSW BLUE/ELEC PUMP to OFF. - the OFF light in the P/BSW comes on.

The Blue electric pump stops.

2. Adjust the flow on the RAT - FLOW On the GCU: CONTROL TEST KIT to 30 l.min

(7.9250 USgal.mn). - a minimum pressure of 2320 psi is displayed.

- the SPEED (RPM) indicator displays more than 4600RPM

NOTE : Continue with the RAT running and the anti-stall device test. ____



16/20

Subtask 29-22-00-720-063

K. Functional Test of the RAT (Pump Test) with the FLOW CONTROL TEST KIT - RAT (HFK02)

------------------------------------------------------------------------------- ACTION RESULT

-------------------------------------------------------------------------------

1. On the overhead panel 40VU: On the overhead panel 40VU: - Set the P/BSW BLUE/ELEC PUMP to OFF. - the OFF light in the P/BSW comes on.

The Blue electric pump stops.

2. Adjust the flow on the FLOW On the FLOW CONTROL TEST KIT - RAT: CONTROL TEST KIT - RAT to 30 l.min (7.9250 USgal.mn). - a minimum pressure of 2320 psi is displayed.

- the SPEED (RPM) indicator displays more than 4600RPM

NOTE : Continue with the RAT running and the anti-stall device test. ____

Subtask 29-22-00-720-061

L. Functional Test of the RAT (Anti-Stall Device Test) with the RAT - FLOW CONTROL TEST KIT (AE89415Z) and the GROUND - CHECKOUT UNIT, RAT (AGE11212)

-------------------------------------------------------------------------------

ACTION RESULT -------------------------------------------------------------------------------

1. Adjust the flow on the RAT - FLOW CONTROL TEST KIT to 0 l.min (0.0000 USgal.mn).

2. On the hydraulic ground-power cart: - decrease the pressure to 180 bar (2610.6786 psi).

3. Adjust the flow on the RAT - FLOW On the GCU:

CONTROL TEST KIT to 60 l.min

EFF : 210-299, 301-399, 401-499, Page 588 29-22-00 Config-1 Feb 01/06 R TAI


17/20

------------------------------------------------------------------------------- ACTION RESULT ------------------------------------------------------------------------------- (15.8501 USgal.mn). - the SPEED (RPM) indicator displays 3900 - 250 + 400 RPM.

- a pressure of 1885 +/- 290 psi is

displayed.

4. Adjust the flow on the RAT - FLOW On the GCU: CONTROL TEST KIT to 0 l.min (0.0000 USgal.mn). - the SPEED (RPM) indicator displays 4600 RPM or more.

- a pressure of 2320 psi or more is displayed.

Subtask 29-22-00-720-064

M. Functional Test of the RAT (Anti-Stall Device Test) with the FLOW CONTROL TEST KIT - RAT (HFK02)

------------------------------------------------------------------------------- ACTION RESULT -------------------------------------------------------------------------------

1. Adjust the flow on the FLOW CONTROL TEST KIT - RAT to 0 l.min (0.0000 USgal.mn).

2. On the hydraulic ground-power cart:

- decrease the pressure to 180 bar (2610.6786 psi).

3. Adjust the flow on the FLOW On the FLOW CONTROL TEST KIT - RAT: CONTROL TEST KIT - RAT to 60 l.min (15.8501 USgal.mn). - the SPEED (RPM) indicator displays 3900 - 250 + 400 RPM.

- a pressure of 1885 +/- 290 psi is displayed.

4. Adjust the flow on the FLOW On the FLOW CONTROL TEST KIT - RAT: CONTROL TEST KIT - RAT to 0 l.min

(0.0000 USgal.mn). - the SPEED (RPM) indicator displays 4600 RPM or more.



18/20

------------------------------------------------------------------------------- ACTION RESULT ------------------------------------------------------------------------------- - a pressure of 2320 psi or more is displayed.

Subtask 29-22-00-860-121

N. Depressurize the hydraulic supply to the CHECK - MOTOR GROUND, RAT.

Subtask 29-22-00-080-054

P. Removal of the Ground Support Equipment (Ref. Fig. 509/TASK 29-22-00-991-023, 510/TASK 29-22-00-991-024, 511/TASK 29-22-00-991-030)

(1) If the GROUND - CHECKOUT UNIT, RAT is installed:

(a) Disconnect the GROUND - CHECKOUT UNIT, RAT from the RAT control panel.

(2) If the FLOW CONTROL TEST KIT - RAT (HFK02) is installed:

(a) Disconnect the electrical connector of the FLOW CONTROL TEST KIT - RAT from the RAT control panel.

(3) Remove the PROTECTION EQUIPMENT - RAT.

(4) Remove the CHECK - MOTOR GROUND, RAT as follows:

(a) Disconnect the hydraulic hoses from the hydraulic ground-power cart.

(b) Remove the bolts (3), the washers (2) and the CHECK - MOTOR GROUND, RAT (4)

(c) Install the cover plate (1), the washers (2) and the bolts (3).

(d) TORQUE the bolts (3) to between 86 and 95 lbf.in (0.97 and 1.07 m.daN)

(5) Disconnect the hydraulic hoses from the ground connectors of the ground service panel of the Blue hydraulic system and remove the FLOW CONTROL TEST KIT - RAT.

(6) Install the hydraulic caps to the ground connectors.



19/20

Subtask 29-22-00-210-082

Q. Inspection of the RAT after the Functional Test

(1) Examine the RAT and make sure that: - the differential pressure indicator is in the in position

NOTE : If the differential pressure indicator is popped out, replace ____ it with a new filter (Ref. TASK 29-22-51-000-013) and (Ref. TASK 29-22-51-400-013).

(2) Examine the RAT pump/gearbox splitline and the drain plug of the RAT gearbox for external leakage. Make sure that the external leakage is not more than: 60 drops an hour when the RAT is in operation, 2 drops an hour when the RAT is not in operation.

NOTE : The given values are only for the RAT pump/gearbox splitline ____ and the drain plug and not for the hydraulic connections. If you are not sure of the source of the leaks you must pressurize the Blue hydraulic system with 3000 psi and examine the hydraulic connections and its related components.

Subtask 29-22-00-680-053

R. Do the draining of the RAT oil drain tank (Ref. TASK 29-22-51-680-003).

5. Close-up ________

Subtask 29-22-00-860-122

A. Put the aircraft back to its initial configuration.

(1) On the overhead panel 50VU, push the LEAK MEASUREMENT VALVES/B (the OFF legend of the this pushbutton switch is off).

(2) Retract the RAT (Ref. TASK 29-22-00-869-006).

(3) Do the EIS stop procedure (Ref. TASK 31-60-00-860-002)

(4) De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).



20/20

Subtask 29-22-00-865-122

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 7XE, 2803GE.

Subtask 29-22-00-410-079

C. Close Access

(1) Make sure that the work area is clean and clear of tool(s) and other items.

(2) Close the access doors 197EB and 195BB.

Subtask 29-22-00-942-069

D. Removal of the Ground Support Equipmemt

(1) Remove the warning notice(s).

(2) Remove the safety barriers.

(3) Remove the ground support and maintenance equipment, the special and standard tools and all other items.

EFF : 210-299, 301-399, 401-499, Page 592 29-22-00 Config-1 Feb 01/06 R

Documents

Operational Check of RAT Manual Deployment and Functional Check of RAT using.pdf