AM Inspection & Quality Control 4

Question 1

What is the significance of a 'Critical Design Configuration Control Limitation' (CDCCL) in aircraft maintenance documentation?

Accepted Answer

It identifies configurations that must be maintained to prevent fuel tank ignition sources

Answer

CDCCLs are specifically designed to maintain fuel tank safety by controlling configurations that could introduce ignition sources, established after TWA 800.

Question 2

During ultrasonic thickness testing of an aircraft skin panel, the instrument reading shows a value below the minimum allowable thickness. The technician should:

Accepted Answer

Remove the panel from service and replace or repair per manufacturer data

Answer

A below-minimum thickness reading means the part is unairworthy; it must be removed from service and dispositioned per manufacturer repair data before return to service.

Question 3

Under 14 CFR Part 43, who is responsible for ensuring that a completed maintenance record entry is accurate, legible, and complete?

Accepted Answer

The person who performed or supervised the work and approved the return to service

Answer

14 CFR 43.9 requires the person approving the work for return to service to make an entry that includes a description, date, and their certificate number.

Question 4

What condition does 'intergranular corrosion' specifically affect in aluminum aircraft structure?

Accepted Answer

The grain boundaries within the metal, weakening it from the inside

Answer

Intergranular corrosion attacks along grain boundaries of the alloy, reducing structural strength significantly while often showing minimal surface evidence.

Question 5

A repair station's inspector rejects a repaired component. The production department disagrees with the rejection. Who has final authority over the airworthiness determination?

Accepted Answer

The Quality Control department

Answer

Quality Control maintains independence and final authority over airworthiness decisions; production cannot override an inspector's rejection under Part 145.

(AM) Aircraft Maintenance Certification Practice Test

(AM) Aircraft Maintenance Certification Practice Test

AM Inspection & Quality Control 4