AD 2026-08-06
Effective 05/07/2026 · Published 04/22/2026
Airworthiness Directives; The Boeing Company Airplanes
Summary
The FAA is adopting a new airworthiness directive (AD) for The Boeing Company Model 747-400 series airplanes modified by certain supplemental type certificates (STCs). This AD was prompted by a report of a ruptured crew oxygen bottle flexible hose and arcing damage on an adjacent cargo loading system wiring harness. This AD requires a detailed inspection of the crew oxygen bottle flexible hoses and adjacent wire har…