# Airworthiness Directives; General Electric Company Turbofan Engines
> **Rule** · Final rule. · Published 2018-04-06 · Effective 2018-05-11 · 83 FR 14741
## Document
- **Document number:** 2018-06738
- **Category:** airworthiness
- **Manufacturer:** General Electric Company Turbofan
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 83 FR 14741
- **Publication date:** 2018-04-06
- **Effective date:** 2018-05-11
- **FAA docket:** Docket No. FAA-2017-0668
## Abstract

We are adopting a new airworthiness directive (AD) for all General Electric Company (GE) CF6-80A, -80A1, -80A2, and -80A3 turbofan engines. This AD was prompted by high cycle fatigue (HCF) cracking of the low-pressure turbine (LPT) stage 3 nozzles. This AD requires replacement of the LPT stage 3 nozzles, part numbers (P/Ns) 9290M52P05 and 9290M52P06, installed. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/04/06/2018-06738/airworthiness-directives-general-electric-company-turbofan-engines)
---
*AI Analytics · CC0 1.0*