# Airworthiness Directives; General Electric Company (GE) CF6-80E1A1, -80E1A2, -80E1A3, -80E1A4, and -80E1A4/B Turbofan Engines
> **Rule** · Final rule; request for comments. · Published 2005-11-09 · Effective 2005-11-25 · 70 FR 67901
## Document
- **Document number:** 05-22207
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 70 FR 67901
- **Publication date:** 2005-11-09
- **Effective date:** 2005-11-25
- **FAA docket:** Docket No. FAA-2005-22712
## Abstract

The FAA is adopting a new airworthiness directive (AD) for General Electric Company (GE) CF6-80E1A1, -80E1A2, -80E1A3, -80E1A4, and -80E1A4/B turbofan engines. This AD requires initial and repetitive fluorescent-penetrant inspections (FPI) of certain areas of high pressure compressor (HPC) cases, part number (P/N) 1509M97G07 and P/N 2083M69G03. This AD results from the discovery that HPC cases, P/N 1509M97G07 and P/N 2083M69G03, were inadvertently left out of the Airworthiness Limitations Section (ALS), Chapter 05-21-02, of GE Engine Manual, GEK 99376, Revision 17. We are issuing this AD to prevent failure of the HPC case aft mount flange, due to cracking.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2005/11/09/05-22207/airworthiness-directives-general-electric-company-ge-cf6-80e1a1--80e1a2--80e1a3--80e1a4-and--80e1a4b)
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