Get Form 337 Example

A standard airworthiness certificate remains valid as long as the aircraft meets its approved type design, is in a condition for safe operation and maintenance, preventative maintenance, and alterations are performed in accordance with 14 CFR parts 21, 43, and 91.

Greaser! an A&P can sign off the 100 hour inspection.....but that doesn't negate the Annual Inspection (IA does this). An annual still needs to be signed every year.

Major alteration means an alteration not listed in the aircraft, aircraft engine, or propeller specifications - (1) That might appreciably affect weight, balance, structural strength, performance, powerplant operation, flight characteristics, or other qualities affecting airworthiness; or.

If the alteration is minor, the approval can be done by any licensed A&P mechanic. However, if the alteration is deemed to be major, it requires a mechanic with an Inspection Authorization (IA), in order to sign the approval block on the 337 form and submit it to the FAA.

The person who performs or supervises a major repair or major alteration must prepare FAA Form 337. The form is executed at least in duplicate and is used to record major repairs and major alterations made to an aircraft, airframe, powerplant, propeller, appliance, or a component part thereof.

Generally speaking, an A&P can install, remove, and reinstall any instrument or piece of avionics. Only an properly FAA-certified instrument/radio repair station or FCC-licensed technician (as applicable) can go inside the box/instrument itself.

In short, a mechanic performing a required inspection (e.g., annual or 100-hour) is always required to make and sign a logbook entry memorializing the inspection, but he may sign off the aircraft as either airworthy or unairworthy. If he signs it off as airworthy, he approves it for immediate return to service.

First, you must determine if the repair is a Major Repair. The FAA's definition of a Major Repair is a repair: (1) That, if improperly done, might appreciably affect weight, balance, structural strength, performance, powerplant operation, flight characteristics, or other qualities affecting airworthiness; or.

If the alteration is minor, the approval can be done by any licensed A&P mechanic. However, if the alteration is deemed to be major, it requires a mechanic with an Inspection Authorization (IA), in order to sign the approval block on the 337 form and submit it to the FAA.

The applicant proposes to repair or alter one serial numbered aircraft. ... The change is annotated on a FAA Form 337, Major Repair and Alteration; The applicant submits FAA Form 337 annotating the change with the data package to the Flight Standards District Office;