smc-3725-10-Testing

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During routine maintenance, ultrasonic testing is performed on some aircraft components such as aircraft landing gear.

What is the reason for performing this test?

It can be performed quickly.
It reveals any surface defects.
It reveals any hidden internal faults.
It can be carried out using simple techniques.

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A periodic aircraft maintenance inspection is to be carried out.

Identify and justify an appropriate test that could be used to check the airworthiness of the landing gear. (4 marks)

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Ultrasonic testing:

Can determine whether there are internal cracks/flaws within the landing gear.
This is appropriate as the equipment is portable, the testing is non-destructive and can be done on site.

Other appropriate tests could include:

Dye penetrant or fluorescent inspection tests

Reveals surface cracks/flaws and is non-destructive.

Magnetic particle/eddy current inspection

Non-destructive and reveals surface and shallow flaws through discrepancies in electric and magnetic fields.

Visual inspection

For any obvious faults/damages/cracks.

Radiography

Used to find deep internal flaws, non-destructive.

Show Worked Solution

Ultrasonic testing:

Can determine whether there are internal cracks/flaws within the landing gear.
This is appropriate as the equipment is portable, the testing is non-destructive and can be done on site.

Other appropriate tests could include:

Dye penetrant or fluorescent inspection tests

Reveals surface cracks/flaws and is non-destructive.

Magnetic particle/eddy current inspection

Non-destructive and reveals surface and shallow flaws through discrepancies in electric and magnetic fields.

Visual inspection

For any obvious faults/damages/cracks.

Radiography

Used to find deep internal flaws, non-destructive.