# Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Tay 620-15 Engines
> **Rule** · Final rule. · Published 2018-09-11 · Effective 2018-10-16 · 83 FR 45811
## Document
- **Document number:** 2018-19565
- **Category:** airworthiness
- **Manufacturer:** Rolls-Royce Deutschland Ltd & Co KG Tay 620-15
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 83 FR 45811
- **Publication date:** 2018-09-11
- **Effective date:** 2018-10-16
- **FAA docket:** Docket No. FAA-2018-0235
## Abstract

We are adopting a new airworthiness directive (AD) for certain Rolls-Royce Deutschland Ltd & Co KG (RRD) Tay 620-15 turbofan engines. This AD was prompted by reports of low-pressure compressor (LPC) fan blade retention lug failures. This AD requires reviewing the engine maintenance records and replacing the LPC fan blade with a part eligible for installation if the dry-film lubricant (DFL) treatment limit is exceeded. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/09/11/2018-19565/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-tay-620-15-engines)
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