What requires a description of the work performed after a major repair is done?

The requirement for a description of the work performed after a major repair is documented on FAA Form 337. This form is specifically designed to report major repairs and major alterations as required by the FAA regulations. It provides a detailed account of the work that has been done, ensuring that there is a clear record for both regulatory compliance and future reference.

The form captures essential information, including the nature of the repair, the parts involved, and any pertinent aircraft details. This level of documentation is crucial, as it not only informs subsequent maintenance personnel about modifications made to the aircraft but also helps ensure safety and compliance with federal aviation standards.

While a maintenance release is important for certifying the return to service of an aircraft, it does not require the same level of detailed description specific to major repairs as Form 337 does. Therefore, the correct option reflecting this requirement is Form 337.