# Proposed AD 2001-NE-26-AD: General Electric Company (GE) CF6-45, -50, -80A, -80C2, and -80E1 Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2002-25-08
- Products: General Electric
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 12, 2002, 67 FR 40239
- Comments due: August 12, 2002
- Became: [AD 2002-25-08](https://openairdocs.org/ad/2002-25-08)
- Docket: 2001-NE-26-AD
- FR document: 02-14700
- Official PDF: https://openairdocs.org/files/sha256/2e/37/2e37f00670655edd732ac3a00bf8307e4d9477f65a2f965ae4e01bf498169b1c (from https://www.govinfo.gov/content/pkg/FR-2002-06-12/pdf/02-14700.pdf)
- Federal Register: https://www.federalregister.gov/documents/2002/06/12/02-14700/airworthiness-directives-general-electric-company-ge-cf6-45--50--80a--80c2-and--80e1-turbofan
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EEC3B7ADB37BDCD386256BD6006B9AA0.0001
- Page: https://openairdocs.org/proposed/2001-NE-26-AD

## Summary

The Federal Aviation Administration (FAA) proposes to supersede three existing airworthiness directives (AD's), that are applicable to GE CF6-45, -50, -80A, -80C2, and -80E1 turbofan engines. Those AD's currently require specific handling of the GE CF6 series high pressure compressor rotor (HPCR) stage 3-9 spools during a fluorescent penetrant inspection process, and an initial and repetitive ultrasonic and eddy current inspections of certain HPCR stage 3-9 spools for cracks. This proposal would remove the AD that requires special handling of the spools during fluorescent-penetrant inspection, and would adjust and combine the initial and repetitive inspection requirements, currently listed in two AD's, into one AD for the HPCR stage 3-9 spool. This proposal aligns repetitive inspection requirements with the more stringent initial inspection requirements required by AD 2000-16-12, Amendment 39-11868 (65 FR 50623, August 21, 2000) and terminates AD 95-18-14, Amendment 39-9361 (60 FR 46216, September 6, 1995) that is no longer necessary. The actions specified in the proposed AD are intended to prevent cracks which can cause separation of the HPCR stage 3-9 spool and possible uncontained engine failure.

## Notices in this docket

- Jun 12, 2002: Notice of proposed rulemaking (NPRM). (first notice), FR document 02-14700, comments due Aug 12, 2002 (https://www.federalregister.gov/documents/2002/06/12/02-14700/airworthiness-directives-general-electric-company-ge-cf6-45--50--80a--80c2-and--80e1-turbofan)

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