# Proposed AD FAA-2018-0993: Rolls-Royce Deutschland Ltd & Co KG TAY 650-15 and TAY 651-54 Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2019-14-01
- Products: Rolls-Royce Deutschland
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 5, 2019, 84 FR 7832
- Comments due: April 19, 2019
- Became: [AD 2019-14-01](https://openairdocs.org/ad/2019-14-01)
- Docket: FAA-2018-0993 (https://www.regulations.gov/docket/FAA-2018-0993, where comments are filed)
- FR document: 2019-03642
- Official PDF: https://openairdocs.org/files/sha256/48/9b/489b8db84b4a0ab38e29c86d38ee9d812a3648d7e0b1fbc996b48cd8966969d5 (from https://www.govinfo.gov/content/pkg/FR-2019-03-05/pdf/2019-03642.pdf)
- Federal Register: https://www.federalregister.gov/documents/2019/03/05/2019-03642/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-tay-650-15-and-tay-651-54-turbofan
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3AAD5B2F01403951862583BB005A740D.0001
- Page: https://openairdocs.org/proposed/FAA-2018-0993

## Summary

We propose to adopt a new airworthiness directive (AD) for all Rolls-Royce Deutschland Ltd & Co KG (RRD) TAY 650-15 and TAY 651-54 turbofan engines with low-pressure compressor (LPC) fan blade module M01300AA or M01300AB, installed. This proposed AD was prompted by reports of LPC fan blade retention lug fractures on engines with a high number of dry-film lubrication (DFL) treatments. This proposed AD would require determining the number of DFL treatments applied on each LPC fan blade, and removing from service and replacing the affected LPC fan blades if the DFL treatment limit is exceeded. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Mar 5, 2019: Notice of proposed rulemaking (NPRM). (first notice), FR document 2019-03642, comments due Apr 19, 2019 (https://www.federalregister.gov/documents/2019/03/05/2019-03642/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-tay-650-15-and-tay-651-54-turbofan)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.