ASI Avionics Systems Compliance 2 — Questions and Answers
Question 1: Under FAR Part 43, who is authorized to approve an avionics system return to service after maintenance?
- Any FAA-certificated pilot
- An appropriately rated certificated mechanic or repair station (Correct answer)
- Only the aircraft manufacturer's representative
- Any FAA-certificated dispatcher
Correct answer: An appropriately rated certificated mechanic or repair station
FAR Part 43 authorizes appropriately rated certificated mechanics or certificated repair stations to approve avionics systems for return to service after maintenance.
Question 2: What document is required to be completed when an avionics modification is made that affects the aircraft's type design?
- FAA Form 8100-9
- FAA Form 337 (Major Repair and Alteration) (Correct answer)
- FAA Form 8130-3
- FAA Form 8050-1
Correct answer: FAA Form 337 (Major Repair and Alteration)
FAA Form 337 must be completed for major repairs or alterations to avionics systems that affect the aircraft's type design.
Question 3: An ADS-B Out system fails the required self-test during preflight. Under 14 CFR 91.227, the aircraft may:
- Operate in Class A airspace only
- Not operate in airspace where ADS-B Out is required without an ATC waiver (Correct answer)
- Continue normal operations if Mode C transponder is functional
- Operate normally if the failure is logged in the maintenance records
Correct answer: Not operate in airspace where ADS-B Out is required without an ATC waiver
Under 14 CFR 91.227, aircraft with inoperative ADS-B Out may not operate in ADS-B required airspace without an ATC waiver or deviation authorization.
Question 4: When inspecting an IFR-certified GPS navigator, which standard must the equipment meet for GPS approaches in the U.S. National Airspace System?
- TSO-C129 or TSO-C196 (Correct answer)
- TSO-C112 or TSO-C166
- TSO-C119 or TSO-C147
- TSO-C40 or TSO-C35
Correct answer: TSO-C129 or TSO-C196
GPS navigators used for IFR approaches must meet TSO-C129 (standalone GPS) or TSO-C196 (WAAS GPS) standards.
Question 5: A flight management system (FMS) software update is considered what type of maintenance action?
- Preventive maintenance
- A minor alteration if FAA-approved data is used (Correct answer)
- A major alteration requiring an STC
- Line maintenance only
Correct answer: A minor alteration if FAA-approved data is used
An FMS software update performed using FAA-approved data (such as manufacturer service bulletins) is typically considered a minor alteration.
Question 6: Which regulation governs the installation of communication and navigation equipment in U.S. certificated aircraft?
- 14 CFR Part 65
- 14 CFR Part 43 and Part 23/25 as applicable (Correct answer)
- 14 CFR Part 71
- 14 CFR Part 139
Correct answer: 14 CFR Part 43 and Part 23/25 as applicable
Avionics installations must comply with 14 CFR Part 43 (maintenance) and the applicable airworthiness standards in Part 23 or Part 25.
Question 7: When performing an avionics inspection, an ASI discovers wiring that does not meet AC 43.13-1B standards. This finding most likely constitutes:
- An acceptable condition if documented in the logbook
- A potential airworthiness concern requiring corrective action (Correct answer)
- A minor discrepancy with no operational impact
- Acceptable if approved by the pilot in command
Correct answer: A potential airworthiness concern requiring corrective action
Wiring that does not meet AC 43.13-1B acceptable data standards is a potential airworthiness concern and requires corrective action before return to service.
ASI Avionics Systems Compliance 2
Under FAR Part 43, who is authorized to approve an avionics system return to service after maintenance?