AD 2008-22-52
Effective 12/15/2008 · Published 11/28/2008
Airworthiness Directives; MD Helicopters, Inc. Model 500N and 600N Helicopters
Summary
This document supersedes AD 2008-18-52 and publishes in the Federal Register an amendment adopting Emergency Airworthiness Directive (AD) 2008-22-52 which was sent previously to all known U.S. owners and operators of MD Helicopters, Inc. (MDHI) Model 500N and 600N helicopters by individual letters. This AD requires turning OFF the Yaw Stability Augmentation System (YSAS); installing a placard that limits airspeed to…