# Proposed AD FAA-2006-26585: General Electric Company CF34-10E Series Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2007-12-09
- Products: General Electric
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 17, 2007, 72 FR 1946
- Comments due: March 19, 2007
- Became: [AD 2007-12-09](https://openairdocs.org/ad/2007-12-09)
- Docket: FAA-2006-26585 (https://www.regulations.gov/docket/FAA-2006-26585, where comments are filed)
- Project: 2006-NE-44-AD
- FR document: E7-499
- Official PDF: https://openairdocs.org/files/sha256/68/5e/685e5dc15e364cd78f8858439290964dbcda6ca48df998267867d066a6f29c09 (from https://www.govinfo.gov/content/pkg/FR-2007-01-17/pdf/E7-499.pdf)
- Federal Register: https://www.federalregister.gov/documents/2007/01/17/E7-499/airworthiness-directives-general-electric-company-cf34-10e-series-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D0511F8592FC9C19862572660058A2B4.0001
- Page: https://openairdocs.org/proposed/FAA-2006-26585

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for General Electric Company (GE) CF34-10E series turbofan engines. This proposed AD would require revising the combustor case published life limit and removing combustor cases from service before reaching a reduced life limit. This proposed AD results from GE's evaluation of the effects to the combustor case due to installing version 5.10 software in the full-authority digital electronic control (FADEC), and revising the combustor case published life limit. We are proposing this AD to prevent uncontained combustor case failure resulting in an in- flight engine shutdown and possible damage to the airplane.

## Notices in this docket

- Jan 17, 2007: Notice of proposed rulemaking (NPRM). (first notice), FR document E7-499, comments due Mar 19, 2007 (https://www.federalregister.gov/documents/2007/01/17/E7-499/airworthiness-directives-general-electric-company-cf34-10e-series-turbofan-engines)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.