# Airworthiness Directives; Williams International Co., L.L.C. Turbofan Engines
> **Rule** · Final rule. · Published 2022-07-05 · Effective 2022-08-09 · 87 FR 39738
## Document
- **Document number:** 2022-14183
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 87 FR 39738
- **Publication date:** 2022-07-05
- **Effective date:** 2022-08-09
- **FAA docket:** Docket No. FAA-2021-0511
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Williams International Co., L.L.C. (Williams) FJ44-2A, FJ44-2C, FJ44-3A, and FJ44-3A-24 model turbofan engines. This AD was prompted by a report of cracks in the high-pressure turbine (HPT) disk posts and failure of an HPT disk post, resulting in the contained fracture of an HPT disk post and blade. This AD requires removing the HPT disk, part number (P/N) 67093, from service before reaching defined cycle limits and replacing it 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/2022/07/05/2022-14183/airworthiness-directives-williams-international-co-llc-turbofan-engines)
---
*AI Analytics · CC0 1.0*