Airframe Mechanic Certification Safety Procedures & Regulatory Compliance 2 — Questions and Answers
Question 1: Under 14 CFR Part 43, who is authorized to approve an aircraft for return to service after a major repair?
- Any certificated mechanic with an A&P certificate
- A certificated repairman at a repair station
- An FAA-certificated mechanic holding an Inspection Authorization (IA) (Correct answer)
- The aircraft owner if they hold a private pilot certificate
Correct answer: An FAA-certificated mechanic holding an Inspection Authorization (IA)
Only an FAA-certificated mechanic holding an Inspection Authorization (IA) or an appropriately rated repair station may approve an aircraft for return to service after a major repair.
Question 2: When using a torque wrench on an aircraft fastener, the torque value specified in the maintenance manual refers to:
- The torque applied after reaching initial resistance
- The total torque including any friction losses in the fitting
- The dry torque value unless otherwise specified (Correct answer)
- The torque with a calibrated impact wrench only
Correct answer: The dry torque value unless otherwise specified
Torque values in maintenance manuals are dry torque values unless the manual specifically states that lubrication is to be applied.
Question 3: A mechanic discovers a crack in an aircraft structure that is NOT listed in the approved repair manual. What is the correct course of action?
- Repair the crack using standard riveting practices
- Stop all work and notify the FAA immediately
- Obtain an FAA-approved repair data or DER-approved repair before proceeding (Correct answer)
- Document the crack in the aircraft logbook and continue operation
Correct answer: Obtain an FAA-approved repair data or DER-approved repair before proceeding
Repairs not covered by approved data must be accomplished using FAA-approved data, which may include a Designated Engineering Representative (DER) approval or a Supplemental Type Certificate (STC).
Question 4: Which document provides the minimum inspection requirements for a U.S.-registered civil aircraft?
- 14 CFR Part 91
- 14 CFR Part 43, Appendix D (Correct answer)
- AC 43.13-1B
- The aircraft's Pilot's Operating Handbook
Correct 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.
Question 5: When must a mechanic make an entry in the aircraft maintenance records after performing maintenance?
- Within 72 hours of completing the work
- Before the aircraft is returned to service (Correct answer)
- Within 30 days of completing the work
- Only when the work affects airworthiness
Correct answer: Before the aircraft is returned to service
Per 14 CFR Part 43.9, a maintenance record entry must be made before the aircraft is returned to service.
Question 6: An Airworthiness Directive (AD) compliance entry must include all of the following EXCEPT:
- The AD number and revision
- The method used to comply with the AD
- The signature and certificate number of the approving person
- The estimated cost of compliance (Correct answer)
Correct answer: The estimated cost of compliance
AD compliance records must include the AD number, revision, method of compliance, and the approving person's signature and certificate number, but not cost information.
Question 7: Which class of aircraft hardware requires a specific military or industry standard part number to be used as a direct replacement?
- Standard parts (Correct answer)
- TSO-approved parts
- PMA parts
- Approved parts
Correct answer: Standard parts
Standard parts are manufactured to an established industry or U.S. military specification and may be used as direct replacements when the part number matches the specification.
Airframe Mechanic Certification Safety Procedures & Regulatory Compliance 2
Under 14 CFR Part 43, who is authorized to approve an aircraft for return to service after a major repair?