# Proposed AD FAA-2018-0235: Rolls-Royce Deutschland Ltd & Co KG Tay 620-15 Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-17-13
- Products: Rolls-Royce Deutschland
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 30, 2018, 83 FR 18758
- Comments due: June 14, 2018
- Became: [AD 2018-17-13](https://openairdocs.org/ad/2018-17-13)
- Docket: FAA-2018-0235 (https://www.regulations.gov/docket/FAA-2018-0235, where comments are filed)
- FR document: 2018-09011
- Official PDF: https://openairdocs.org/files/sha256/b1/06/b106b274af8b76244bbce8dd4099df739b3bd517558a00315423504a3b96ceec (from https://www.govinfo.gov/content/pkg/FR-2018-04-30/pdf/2018-09011.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/04/30/2018-09011/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-tay-620-15-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/337D3FC3D659A3CC8625827F004DEB42.0001
- Page: https://openairdocs.org/proposed/FAA-2018-0235

## Summary

We propose to adopt a new airworthiness directive (AD) for Rolls-Royce Deutschland Ltd & Co KG (RRD) Tay 620-15 turbofan engines. This AD limits service life of the low-pressure compressor (LPC) fan blades based on the number of dry-film lubricant (DFL) treatments. The AD was prompted by reports of LPC fan blade retention lug failures. We are proposing this AD to correct the unsafe condition on these products.

## Notices in this docket

- Apr 30, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-09011, comments due Jun 14, 2018 (https://www.federalregister.gov/documents/2018/04/30/2018-09011/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-tay-620-15-engines)

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