# Airworthiness Directives; Engine Alliance Engines
> **Rule** · Final rule; request for comments. · Published 2026-10-08 · Effective 2026-10-23 · 91 FR 64256
## Document
- **Document number:** 2026-20666
- **Category:** airworthiness
- **Manufacturer:** Engine Alliance
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 91 FR 64256
- **Publication date:** 2026-10-08
- **Effective date:** 2026-10-23
- **FAA docket:** Docket No. FAA-2026-11801
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Engine Alliance (EA) Model GP7270, GP7272, and GP7277 engines. This AD was prompted by a report of an aborted takeoff that resulted from an uncontained failure of the high-pressure turbine (HPT) interstage seal. This AD requires removal from service and replacement of the HPT interstage seal with a part eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2026/10/08/2026-20666/airworthiness-directives-engine-alliance-engines)
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