Airworthiness Directives; MD Helicopters Inc. (MDHI), Helicopters

FAA / Federal Register · 2020-10246

The FAA proposes to adopt a new airworthiness directive (AD) for certain MD Helicopters Inc. (MDHI), Model 369A, 369D, 369E, 369FF, 369H, 369HE, 369HM, 369HS, 500N, and 600N helicopters. This proposed AD would require tap inspecting each main rotor (MR) blade leading edge abrasion strip and is prompted by reports of abrasion strips departing the MR blade in-flight. The proposed actions are intended to prevent an unsafe condition on these products.