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NPRM FAA-2010-0755

Became AD 2012-04-01
Open the Markdown

Proposed airworthiness directive · Rolls-Royce

Open in Federal RegisterComment on regulations.gov

Official PDF· 248 KB
Download from govinfo.gov
Published
January 18, 2017 · 82 FR 5454
Comments due
March 6, 2017
Action
Notice of proposed rulemaking (NPRM)
Became
AD2012-04-01
Docket
FAA-2010-0755
Project
2010-NE-12-AD
FR document
2017-00890
Products
Engine

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 supersede airworthiness directive (AD) 2012-04- 01 that applies to all Rolls-Royce plc (RR) RB211-Trent 800 model turbofan engines. AD 2012-04-01 requires removal from service of certain critical engine rotating parts based on reduced life limits. Since we issued AD 2012-04-01, RR has further revised the life limits of certain critical engine rotating parts. This proposed AD would make additional revisions to the life limits of certain critical engine rotating parts. We are proposing this AD to correct the unsafe condition on these products.

The resulting AD

AD 2012-04-01HistoricalCritical engine parts · Rolls-Royce RB211-Trent 875-17, RB211-Trent 877-17, RB211-Trent 884-17 and 4 moreEffective Mar 28, 2012 · Replaced by AD 2017-08-11

Notices in this docket · 3

FR 2010-19027Notice of proposed rulemaking (NPRM)Published Aug 3, 2010 · comments due Sep 17, 2010 · first noticeFR 2011-28678Supplemental notice of proposed rulemaking (NPRM); reopening of comment periodPublished Nov 7, 2011 · comments due Jan 6, 2012FR 2017-00890Notice of proposed rulemaking (NPRM)Published Jan 18, 2017 · comments due Mar 6, 2017