Superseded. This AD was superseded by AD 2022-02-15. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2020-12-06
Effective 07/20/2020 · Published 06/15/2020
Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes
Summary
The FAA is adopting a new airworthiness directive (AD) for all Gulfstream Aerospace Corporation (Gulfstream) Model G-IV airplanes. This AD was prompted by reports of un-commanded nose wheel steering turns. This AD requires replacing the nose wheel steering servo valve manifold, incorporating revised operating procedures into the airplane flight manual (AFM), doing a records inspection for any incidents of un-command…