# Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Engines
> **Rule** · Final rule. · Published 2023-11-20 · Effective 2023-12-26 · 88 FR 80575
## Document
- **Document number:** 2023-25521
- **Category:** airworthiness
- **Manufacturer:** Rolls-Royce Deutschland Ltd & Co KG
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 88 FR 80575
- **Publication date:** 2023-11-20
- **Effective date:** 2023-12-26
- **FAA docket:** Docket No. FAA-2023-1637
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all Rolls-Royce Deutschland Ltd & Co KG (RRD) Model Trent 1000-A2, Trent 1000-AE2, Trent 1000-C2, Trent 1000-CE2, Trent 1000-D2, Trent 1000-E2, Trent 1000-G2, Trent 1000-H2, Trent 1000-J2, Trent 1000-K2, and Trent 1000-L2 engines. This AD was prompted by reports of cracking and separation of certain low-pressure turbine (LPT) stage 1 blade assemblies. This AD requires initial and repetitive inspections of affected LPT stage 1 blade assemblies for cracking or separation and, depending on the results of the inspections, reduction of the inspection interval or replacement of the LPT stage 1 blade set and disk, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/11/20/2023-25521/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-engines)
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