# Proposed AD FAA-2014-0561: Rolls-Royce plc Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2015-04-03
- Products: Rolls-Royce
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 10, 2015, 80 FR 69625
- Comments due: January 11, 2016
- Became: [AD 2015-04-03](https://openairdocs.org/ad/2015-04-03)
- Docket: FAA-2014-0561 (https://www.regulations.gov/docket/FAA-2014-0561, where comments are filed)
- Project: 2014-NE-12-AD
- FR document: 2015-28533
- Official PDF: https://openairdocs.org/files/sha256/48/00/4800d9fac17a3e8e04b7a81838b0855e50c4ee7338784188011dba38ad259420 (from https://www.govinfo.gov/content/pkg/FR-2015-11-10/pdf/2015-28533.pdf)
- Federal Register: https://www.federalregister.gov/documents/2015/11/10/2015-28533/airworthiness-directives-rolls-royce-plc-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/AB661AFC08F92FF886257EF90054C82C.0001
- Page: https://openairdocs.org/proposed/FAA-2014-0561

## Summary

We propose to supersede airworthiness directive (AD) 2015-04- 03 that applies to certain Rolls-Royce plc (RR) RB211 Trent 768-60, 772-60, and 772B-60 turbofan engines. AD 2015-04-03 requires inspection of the sealing sleeve on the high-pressure/intermediate-pressure (HP/ IP) turbine support internal oil feed tube and removal of those sealing sleeves affected by AD 2015-04-03. This proposed AD would require removal of either the affected sealing sleeve only or both the affected sealing sleeve and the oil feed tube. We are proposing this AD to prevent failure of the HP/IP turbine support internal oil feed tube, which could lead to uncontained engine failure and damage to the airplane.

## Notices in this docket

- Sep 18, 2014: Notice of proposed rulemaking (NPRM). (first notice), FR document 2014-22351, comments due Nov 17, 2014 (https://www.federalregister.gov/documents/2014/09/18/2014-22351/airworthiness-directives-rolls-royce-plc-turbofan-engines)
- Nov 10, 2015: Notice of proposed rulemaking (NPRM)., FR document 2015-28533, comments due Jan 11, 2016 (https://www.federalregister.gov/documents/2015/11/10/2015-28533/airworthiness-directives-rolls-royce-plc-turbofan-engines)

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