Repairs to a buckled spar performed in accordance with the manufacturer's structural repair manual would typically be documented on which form?

Repairs to a buckled spar performed in accordance with the manufacturer's structural repair manual would typically be documented on which form?

• A. Maintenance Manual
• B. Airworthiness Directive
• C. FAA Form 337
• D. Certificate of Aircraft Registration

Answer: (C)

Major airframe repairs, such as repairing a buckled spar using the manufacturer's structural repair manual, are documented on FAA Form 337. This form provides an official, FAA-acceptable record that the repair was performed in accordance with approved data and is considered a major repair or alteration. It captures what work was done, where, what parts were installed, and any pertinent data from the repair manual, and it requires the signatures of the person performing the work and an authorized inspector (often with the aircraft owner’s acknowledgment). The completed form is filed with the FAA and kept in the aircraft’s maintenance records as required by 14 CFR Part 43. This formal documentation is what certifies the repair for airworthiness. Maintenance manuals are the sources for how to perform tasks, not the regulatory record of the repair. An Airworthiness Directive addresses a known unsafe condition and outlines required actions, but it does not serve as the repair record for a specific incident. The Certificate of Aircraft Registration is about ownership, not maintenance or repairs.

Major airframe repairs, such as repairing a buckled spar using the manufacturer's structural repair manual, are documented on FAA Form 337. This form provides an official, FAA-acceptable record that the repair was performed in accordance with approved data and is considered a major repair or alteration. It captures what work was done, where, what parts were installed, and any pertinent data from the repair manual, and it requires the signatures of the person performing the work and an authorized inspector (often with the aircraft owner’s acknowledgment). The completed form is filed with the FAA and kept in the aircraft’s maintenance records as required by 14 CFR Part 43. This formal documentation is what certifies the repair for airworthiness.

Maintenance manuals are the sources for how to perform tasks, not the regulatory record of the repair. An Airworthiness Directive addresses a known unsafe condition and outlines required actions, but it does not serve as the repair record for a specific incident. The Certificate of Aircraft Registration is about ownership, not maintenance or repairs.