Airframe Mechanic Airframe Inspection Questions and Answers

Question 1

According to 14 CFR Part 43, which of the following is authorized to perform an annual inspection and approve an aircraft for return to service?

Accepted Answer

An A&P mechanic holding an Inspection Authorization (IA).

Answer

Any certificated Airframe and Powerplant (A&P) mechanic.

Answer

The aircraft owner, provided they hold at least a private pilot certificate.

Answer

An A&P mechanic with at least 10 years of experience on the specific aircraft type.

Question 2

A technician needs to inspect an aluminum wing spar for suspected subsurface cracks that are not open to the surface. Which Non-Destructive Testing (NDT) method is most suitable for this task?

Accepted Answer

Eddy Current Inspection

Answer

Dye Penetrant Inspection

Answer

Magnetic Particle Inspection

Answer

Visual Tap Test

Question 3

During a pre-purchase inspection, a mechanic is reviewing the aircraft's maintenance records. Which of the following is true regarding Airworthiness Directives (ADs)?

Accepted Answer

Compliance with an applicable AD is mandatory and must be documented in the maintenance records.

Answer

Compliance is at the discretion of the aircraft owner, based on the cost of the required action.

Answer

ADs are recommendations from the manufacturer, similar to Service Bulletins.

Answer

An AD only needs to be complied with during an annual inspection, not a 100-hour inspection.

Question 4

While performing a tap test on a composite honeycomb control surface, an inspector notes a distinct change in sound from a sharp, ringing noise to a dull thud in a localized area. This sound change most likely indicates:

Accepted Answer

Delamination or a disbond between the skin and the core.

Answer

A properly bonded and solid internal structure.

Answer

A surface scratch that has penetrated the top layer of paint.

Answer

Normal variation in sound due to an internal rib or spar.

Question 5

An inspector observes fine, dark, soot-like trails extending aft from several rivet heads on the fuselage skin. What is this condition commonly called and what does it indicate?

Accepted Answer

A "smoking rivet," indicating movement and fretting in the joint.

Answer

Filiform corrosion, indicating a failure of the paint or primer.

Answer

Rivet shear, indicating the rivet has failed and must be replaced immediately.

Answer

Intergranular corrosion, indicating an improper heat treatment of the aluminum sheet.

Question 6

An aircraft used for commercial flight instruction requires a 100-hour inspection. According to 14 CFR 91.409, by how much time may this inspection interval be exceeded if the aircraft is being flown to a location where the inspection can be performed?

Accepted Answer

By no more than 10 hours.

Answer

The inspection interval cannot be exceeded.

Answer

By 10 percent of the interval (10 hours), but only for non-commercial operations.

Answer

By up to 25 hours with a special flight permit.