AD 2008-22-53
Effective 12/17/2008 · Published 12/02/2008
Airworthiness Directives; MD Helicopters, Inc. Model MD900 Helicopters
Summary
This document supersedes AD 2008-18-52 and publishes in the Federal Register an amendment adopting Emergency Airworthiness Directive (AD) 2008-22-53 which was sent previously to all known U.S. owners and operators of MD Helicopters, Inc. (MDHI) Model MD900 helicopters by individual letters. This AD requires turning ON both Vertical Stabilizer Control System (VSCS) switches and turning OFF the autopilot (AP/SAS) swit…