The FAA recently issued AC 135-44 (Aircraft Configuration Inspection for Part 135 Operators) to guide operators through the process of placing an aircraft into service under their Part 135 operating certificate. Though the AC is non-regulatory, it outlines an accepted method of compliance for ensuring aircraft meet all Part 135 requirements.
Actions covered in the AC include verifying aircraft registration and airworthiness; confirming lease agreements meet all FAA standards; checking that all repairs, alterations, and approvals are properly documented; and establishing ongoing and consistent maintenance and inspection procedures. Additionally, operators must update their Operations Specifications (OpSpecs) through the FAA’s WebOPSS system and ensure proper administrative paperwork such as insurance and economic authority registration are on file. The circular includes checklists, worksheets, and a sample letter to the FSDO to assist operators in working through the process efficiently.