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

Summary

The Federal Aviation Administration (FAA) has issued an airworthiness directive amendment requiring modifications to the piping of the potable water system on certain McDonnell Douglas Model DC-9-10, -20, -30, and -40 series airplanes and C-9 (military) series airplanes to prevent ice formation on control cables in the wheel well, which could lead to loss of flight control surfaces and reduced airplane controllability.