FAA Form 337

FAA Form 337 Guidance

Description: This Advisory Circular provides detailed instructions for completing and submitting FAA Form 337, which is required for documenting major repairs and alterations to aircraft.

Link: AC 43.9-1G - Instructions for Completion of FAA Form 337

Instructions for Completion of FAA Form 337

AC 43.9-1G

Description: This AC outlines the procedures for requesting field approval of data, major alterations, and repairs, which often necessitate the submission of FAA Form 337.

Link: AC 43-210 - Standardized Procedures for Requesting Field Approval of Data, Major Alterations, and Repairs.

Standardized Procedures for Field Approvals

AC 43-210

Acceptable Methods, Techniques, and Practices

AC 43.13-1B

Description: This circular provides guidance on acceptable methods, techniques, and practices for aircraft inspection and repair. It references the need to document major repairs using FAA Form 337.

Link: AC 43.13-1B - Acceptable Methods, Techniques, and Practices - Aircraft Inspection and Repair.

Maintenance and Alteration Data

AC 120-77

Description: This AC provides guidance on the use of approved data for repairs and alterations, and mentions the use of FAA Form 337 for documentation purposes.

Link: AC 120-77 - Maintenance and Alteration Data

Legal Interpertations

Link: Bowers 2016- Whether altering an aircraft in accordance with a Supplemental Type Certificate requires completion of FAA Form 337.

Link:Collins 2011 - ELT Install in non pressurized vessel

Link: Rude 2015- Defining Major Alteration.

Major Alteration Job Aid

Link: FAA Order 8300.16, Major Repair and Alteration