NPRM FAA-2012-0530

Became AD 2012-22-11

Proposed airworthiness directive · Bell Helicopter Textron

Open in Federal Register Comment on regulations.gov

Published: May 22, 2012 · 77 FR 30232
Comments due: July 23, 2012
Action: Notice of proposed rulemaking (NPRM)
Became: AD2012-22-11
Docket: FAA-2012-0530
Project: 2011-SW-075-AD
FR document: 2012-12350
Products: Aircraft

A proposal is not in force. If adopted, it becomes an AD, usually with changes. Only the Federal Register edition is official.

Summary

We propose to adopt a new airworthiness directive (AD) for Bell Helicopter Textron (BHT) Model 412, 412EP, and 412CF helicopters. This proposed AD is prompted by a reported failure of a collective lever. These proposed actions are intended to detect a crack in the collective lever, which could lead to failure of the collective lever and subsequent loss of control of the helicopter.

The resulting AD

AD 2012-22-11Main Rotor · Bell Helicopter Textron 412, 412CF and 412EPEffective Dec 20, 2012

Notices in this docket · 1

FR 2012-12350Notice of proposed rulemaking (NPRM)Published May 22, 2012 · comments due Jul 23, 2012