Presentation Thermographic Inspections Used By Aircrafts!

Thermographic Inspections used by Aircrafts

Copyright © 2005 - 2009 Thermografisch Adviesbureau Uden BV - www.thermography.nl -

Let’s introduce myself:

Ralf Grispen, 36 years oldLive in the south of The Netherlands.http://www.linkedin.com/in/rgrispen

Certified Level I (no. 2005NL46N011) and Level II (no. 2009BE04006) Infrared Thermographer by Thermografisch Adviesbureau Uden.

Specialized in electrical installations and aircrafts inspections.


Something about Thermografisch Adviesbureau Uden BV:

Thermografisch Adviesbureau Uden BV is an independent officewhich uses infrared thermography in the most extensive way you can imagine.


23,5°C

65,9°C

30

40

50

60

15,8°C

34,6°C

20

25

30

36,1°C

50,7°C

40

45

50

3,4°C

10,4°C

4

6

8

10

Something about our equipment:

We only use calibrated and certified infrared camera’s with the highest resolution, this is very important to do infrared inspections on aircrafts. For example: P640 with a high definition 640 x 480 detector


Something about our employees:

All our inspectors have a Level I and Level II certificate through the Infrared Training Centre, which guarantees a professional assessment of the infrared images and a lot of experience in the several types of inspections.

- Boston, USA- Danderyd, Sweden


http://www.infraredtraining.com/

What is Thermography?

Water and composite materials have different thermal properties. When out of thermal balance (equilibrium), after a heating or cooling process, a temperature difference is observed between water and composite. An infrared camera enables the temperature distribution on the inspection surface to be observed.


13,1°C

31,5°C

15

20

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30

-11,6°C

24,0°C

-10

0

10

20

-11,8°C

74,4°C

0

20

40

60

Use of Thermograph Inspection on aircrafts

Goals for you as maintenance department:

To have an early indication of possible problem areas at the start of every c-check.

The inspection has the purpose to analyze, interpret and report hidden moisture on all composite parts of the aircraft selected which you selected to have the focus on. For example; radome, wing to body fearings, engines, flaps etc.


Motivation

This motivation is from a customer who is using this method of working several years now;

“Before the introduction of a thermograph inspection, at the early start of a c-check, we were more than once “surprised” with findings at a later stage”.

“These late findings gave us a lot of extra costs and/or delays which we wanted to reduce to the maximum”.


Actual practice

The best moment to do this inspection method is directly after landing, otherwise our infrared camera can not localize the spots.

It is of course possible in a hanger but that’s very labour-intensive because we have to simulate a difference in temperature with heating blankets.


Advantage of having the focus on possible problem areas at the start of the inspection:

Almost instantaneously you can have your MRO carrying out a regular inspection on that problem area. This can be either the planned inspection belonging to the work package according maintenance program or an extra inspection according AMM/SRM not belonging to this particular c-check.

Meanwhile you were are able to investigate the availability for possible spare parts and investigate the repair capabilities and possibilities.

You can map all critical areas and anticipate in future checks (eliminate surprises). We will send you the report by e-mail in a pdf file format.

- Adjust maintenance program based on experience


Examples of some findings:

Lots of damages on top of a inlet cowl

Some small spots on top of a fan cowl


0,2°C

10,7°C

5

10

0,2°C

12,0°C

5

10

Examples of some findings:

Lots of damages on bottom of a fan cowl

Some small spots on a fearing


8,0°C

19,1°C

10

15

11,4°C

17,2°C

12

14

16

Examples of the final report:


What are the costs?

This is unfortunately not to be determined beforehand, this is dependent on the following factors.

- Number of aircrafts,- Quantity of panels, - Type of aircrafts,- Number of inspectors, - Location,- Etc.

That is why we are introducing this type of checks only on request.


More information?

Take a further look at our website and do not hesitate to contact me in case of questions or more information.

Thermografisch Adviesbureau Uden BVAviation DepartmentAttn. Mr. R. Grispen ([email protected])P.O. Box 7665400 AT UDEN (The Netherlands)Phone: +31 413 25 60 59Cell phone: +31 6 21 51 55 77

www.thermography.nl or www.thermografie.nl


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Presentation Thermographic Inspections Used By Aircrafts!