Regulation & law · 20/09/2001
FAA Proposes New Airworthiness Directive for McDonnell Douglas DC-9 and C-9 Airplanes
The Federal Aviation Administration (FAA) proposes a new airworthiness directive (AD) for certain McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 series airplanes, and C-9 airplanes, requiring repetitive inspections to detect cracks in the aft pressure bulkhead and modification for some models.