McDonnell Douglas DC-9-10, -20, -30, -40, and -50 Series Airplanes and C-9 (Military) Airplanes: Airworthiness Directive Amendment

Summary

The Federal Aviation Administration (FAA) has issued an airworthiness directive amendment for certain McDonnell Douglas Model DC-9-10, -20, -30, -40, and -50 series airplanes and C-9 (military) airplanes, requiring improved inspections to detect cracks in the front spar of the engine pylons and modification of the subject area to prevent fatigue cracking and structural failure.