The FAA is proposing an airworthiness directive for MD Helicopters 369Ds, 369Es, 369Fs and 369FFs with specific serial-numbered tailboom assemblies. The AD was prompted by the discovery of short-edge margin conditions on two tailboom assemblies. The proposed actions are intended to detect a short-edge margin condition, to modify the tailboom by adding a longeron doubler over the area with the short-edge distance, and to prevent failure of the tailboom and subsequent loss of control of the helicopter. The FAA is taking comments until October 29.
FAA Proposed MD 369 Airworthiness Directive
- September 5, 2012, 12:55 PM