ACS ACS Industry Standards 3 — Questions and Answers
Question 1: Which type of maintenance record entry is required after completion of a 100-hour inspection?
- A Supplemental Type Certificate
- A signed logbook entry per 14 CFR 43.11 (Correct answer)
- A field approval form
- An FAA Form 8130-3
Correct answer: A signed logbook entry per 14 CFR 43.11
14 CFR 43.11 requires a maintenance record entry including the date, aircraft total time, signature, and certificate number after each inspection.
Question 2: What distinguishes a major repair from a minor repair under 14 CFR Part 43?
- The cost of parts used
- The potential effect on structural strength, flight characteristics, or other airworthiness qualities (Correct answer)
- Whether FAA-approved tooling was used
- The amount of time required to complete the work
Correct answer: The potential effect on structural strength, flight characteristics, or other airworthiness qualities
A major repair is one that might appreciably affect structural strength, flight characteristics, or other airworthiness qualities if improperly done.
Question 3: When must an FAA Form 337 be submitted after a major repair or alteration?
- Within 48 hours of completion
- Within 30 days after approval for return to service (Correct answer)
- Within 90 days of the aircraft's next annual inspection
- Only if the aircraft is registered under Part 121
Correct answer: Within 30 days after approval for return to service
14 CFR 43.9 requires Form 337 to be submitted to the FAA Aircraft Registration Branch within 48 hours, while one copy is kept with the aircraft records.
Question 4: Which publication would a mechanic consult to determine if a specific alteration requires an STC or field approval?
- The Master Minimum Equipment List (MMEL)
- The Type Certificate Data Sheet (TCDS)
- FAA Order 8300.16
- AC 43.13-2B (Correct answer)
Correct answer: AC 43.13-2B
AC 43.13-2B provides acceptable methods for aircraft alterations and helps determine what approvals are needed.
Question 5: Under the ACS framework, 'risk management' is best described as:
- Avoiding all non-standard maintenance tasks
- The process of identifying hazards, assessing risk, and mitigating it to an acceptable level (Correct answer)
- Documenting all repairs in the aircraft logbook
- Following manufacturer inspection intervals exactly
Correct answer: The process of identifying hazards, assessing risk, and mitigating it to an acceptable level
ACS risk management involves a systematic process of identifying, assessing, and mitigating hazards before performing maintenance tasks.
Question 6: A Supplemental Type Certificate (STC) grants authority to do which of the following?
- Perform annual inspections on experimental aircraft
- Install an FAA-approved design change on a type-certificated product (Correct answer)
- Issue an Airworthiness Directive waiver
- Certify a new aircraft design from scratch
Correct answer: Install an FAA-approved design change on a type-certificated product
An STC authorizes the modification of a certificated aircraft with an FAA-approved design change that deviates from the original type design.
Question 7: How long must maintenance records for major repairs and major alterations be retained by the aircraft owner?
- 1 year from the date of the work
- Until the work is superseded by work of equal or greater scope
- For the life of the aircraft (Correct answer)
- 2 years or until the next annual inspection
Correct answer: For the life of the aircraft
14 CFR 91.417 requires that records of major repairs and alterations be retained for the life of the aircraft.
ACS ACS Industry Standards 3
Which type of maintenance record entry is required after completion of a 100-hour inspection?