The FAA released a new advisory circular (AC) that explains the process and procedure to be used in obtaining a field approval for a type certificated aircraft. AC 43-210, “Standardized Procedures for Requesting Field Approval of Data, Major Alterations, and Repairs”, describes the procedures for obtaining a field approval including, submission of data supporting the alteration or repair and the purpose and uses of the Aircraft Flight Manual Supplements (AFMS) and Instructions for Continued Airworthiness (ICA). A sample Compliance Checklist and instructions for completing the Field Approval Checklist are also included.
The new AC removes some of the confusion and inconsistency that has existed with respect to the field approval process and should help standardize the methods and procedures for obtaining field approvals. The AC is a must read for anyone planning on using the field approval process in the future.