ASI Maintenance and Repair Procedures 2 — Questions and Answers
Question 1: When performing a major repair on an aircraft, the FAA Form 337 must be submitted to which office?
- Local FSDO (Correct answer)
- Aircraft manufacturer
- National Aviation Authority abroad
- FAA Civil Aeromedical Institute
Correct answer: Local FSDO
FAA Form 337 for major repairs must be submitted to the local Flight Standards District Office (FSDO).
Question 2: Under 14 CFR Part 43, which of the following is classified as a major alteration?
- Replacing a flat tire with an identical tire
- Installing a non-approved navigation system (Correct answer)
- Lubricating control cables per the maintenance manual
- Replacing a burned-out navigation light bulb
Correct answer: Installing a non-approved navigation system
Installing equipment not approved for the aircraft type constitutes a major alteration under 14 CFR Part 43.
Question 3: What is the purpose of a torque wrench when performing aircraft maintenance?
- Measure bolt diameter
- Apply a specified amount of tightening force (Correct answer)
- Remove seized fasteners
- Check thread pitch
Correct answer: Apply a specified amount of tightening force
A torque wrench ensures fasteners are tightened to the exact specification required, preventing under- or over-torquing.
Question 4: An aircraft mechanic discovers a crack in a primary structural member. What is the correct initial action?
- Apply stop-drill and return to service
- Document and return to service if below manufacturer limits
- Remove the aircraft from service and consult approved repair data (Correct answer)
- Monitor the crack at next 100-hour inspection
Correct answer: Remove the aircraft from service and consult approved repair data
Cracks in primary structural members require removal from service and evaluation against approved repair data before any return to service.
Question 5: Which document must a certificated repair station reference to perform a repair on a specific aircraft component?
- Owner's manual
- Approved data such as AMM, STC, or FAA-approved engineering order (Correct answer)
- Insurance policy
- Previous inspection logbook entry
Correct answer: Approved data such as AMM, STC, or FAA-approved engineering order
Repairs must be performed using approved data including the Aircraft Maintenance Manual, STCs, or FAA-approved engineering orders.
Question 6: What does the term 'airworthy' mean in the context of aircraft maintenance?
- The aircraft has passed its last annual inspection
- The aircraft conforms to its type design and is in a condition for safe operation (Correct answer)
- The aircraft has no outstanding service bulletins
- The aircraft has been approved for IFR flight
Correct answer: The aircraft conforms to its type design and is in a condition for safe operation
Airworthy means the aircraft conforms to its approved type design and is in a condition for safe operation.
Question 7: When is a Supplemental Type Certificate (STC) required during a maintenance or repair action?
- When replacing any part with an identical part
- When modifying an aircraft in a manner not covered by the original type certificate (Correct answer)
- When performing a 100-hour inspection
- When lubricating landing gear components
Correct answer: When modifying an aircraft in a manner not covered by the original type certificate
An STC is required when making changes to an aircraft that deviate from its original type certificate data sheet.
ASI Maintenance and Repair Procedures 2
When performing a major repair on an aircraft, the FAA Form 337 must be submitted to which office?