AD 2016-20-01

Effective 10/17/2016 · Published 09/30/2016

Airworthiness Directives; Bell Helicopter Textron Canada Limited (Bell) Helicopters

Bell Helicopter Textron Canada Bell Textron Canada Bell Helicopter Textron Canada Limited

Summary

We are adopting a new airworthiness directive (AD) for Bell Model 427 and Model 429 helicopters. This AD requires replacing certain engine and transmission oil check valves. This AD also prohibits installing the affected check valves on any helicopter. This AD is prompted by a report of several cracked or leaking check valves. These actions are intended to detect and prevent a cracked or leaking check valve which co…

Read the full AD on the Federal Register See what applies to your aircraft — Logbook