Airframe Inspection Procedures Flashcards
7 cards from real Airframe Mechanic Certification practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Airframe Inspection Procedures flashcards as text
Which document defines the minimum inspection requirements for a 100-hour inspection on a certificated aircraft?
Answer: 14 CFR Part 43, Appendix D
14 CFR Part 43, Appendix D lists the scope and detail of items to be included in annual and 100-hour inspections.
When inspecting a fuselage skin for corrosion, which type is most difficult to detect because it forms beneath the surface?
Answer: Intergranular corrosion
Intergranular corrosion attacks grain boundaries beneath the surface and may not be visible until the metal blisters or delaminate.
During a control surface inspection, you notice the hinge pin has 0.010 inch of lateral play. The manufacturer's limit is 0.005 inch. What is the correct action?
Answer: Replace the hinge assembly before returning to service
Exceeding manufacturer limits requires replacement before return to service; documenting and monitoring is not acceptable when a limit is exceeded.
A mechanic performs a 100-hour inspection and discovers a cracked engine mount. Who must sign the return-to-service entry after the repair?
Answer: Any certificated A&P mechanic
An A&P mechanic may approve a repair for return to service; an IA is only required to approve the annual inspection itself.
Which NDT method is best suited for detecting subsurface cracks in aluminum airframe structure without removing paint?
Answer: Eddy current inspection
Eddy current inspection can detect subsurface flaws in non-ferrous metals through paint and coatings without removal.
When is a logbook entry for an inspection considered complete per 14 CFR Part 43.11?
Answer: When the date, aircraft total time, and mechanic signature/certificate number are recorded
Part 43.11 requires the entry to include the date, aircraft total time in service, and the signature and certificate number of the approving mechanic.
During an airframe inspection, a mechanic finds a dent in the fuselage skin that is 3 inches in diameter and 1/4 inch deep with no cracks. According to AC 43.13-1B, what is the primary concern?
Answer: The dent may indicate internal structural damage
Dents can indicate underlying structural damage such as cracked frames or stringers that require inspection of internal structure.