# Proposed AD FAA-2017-0650: Rolls-Royce plc Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-18-15
- Products: Rolls-Royce
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 28, 2017, 82 FR 45218
- Comments due: October 30, 2017
- Became: [AD 2018-18-15](https://openairdocs.org/ad/2018-18-15)
- Docket: FAA-2017-0650 (https://www.regulations.gov/docket/FAA-2017-0650, where comments are filed)
- FR document: 2017-20718
- Official PDF: https://openairdocs.org/files/sha256/a8/8a/a88ac09b9e311715d10d83df43693ab2b502850cdbe1453b44d0236093ca50a2 (from https://www.govinfo.gov/content/pkg/FR-2017-09-28/pdf/2017-20718.pdf)
- Federal Register: https://www.federalregister.gov/documents/2017/09/28/2017-20718/airworthiness-directives-rolls-royce-plc-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0464C562EA85EFF7862581AA005C3370.0001
- Page: https://openairdocs.org/proposed/FAA-2017-0650

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Rolls-Royce plc (RR) RB211-Trent 875-17, RB211-Trent 877-17, RB211-Trent 884-17, RB211-Trent 884B-17, RB211-Trent 892-17, RB211- Trent 892B-17, and RB211-Trent 895-17 turbofan engines. This proposed AD was prompted by low-pressure compressor (LPC) case A-frame hollow locating pins that may have reduced integrity due to incorrect heat treatment. This proposed AD would require replacement of the LPC case A-frame hollow locating pins. We are proposing this AD to correct the unsafe condition on these products.

## Notices in this docket

- Sep 28, 2017: Notice of proposed rulemaking (NPRM). (first notice), FR document 2017-20718, comments due Oct 30, 2017 (https://www.federalregister.gov/documents/2017/09/28/2017-20718/airworthiness-directives-rolls-royce-plc-turbofan-engines)

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