Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes

The FAA is adopting a new airworthiness directive (AD) for certain Gulfstream Aerospace Corporation Model GVII-G500 and GVII-G600 airplanes. This AD was prompted by a report of a failed rear engine mount discovered during a preflight walk-around due to visible engine misalignment. This AD requires inspecting the left and right engine mount points within the pylons and engine nacelles for non-conforming hardware installation, repairing the engine mount points if necessary, and revising the existing aircraft maintenance manual (AMM) to include revised procedures for engine removal and installation. The FAA is issuing this AD to address the unsafe condition on these products.