# Proposed AD FAA-2018-0142: General Electric Company CF34-8E Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-17-14
- Products: General Electric
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 17, 2018, 83 FR 16794
- Comments due: June 1, 2018
- Became: [AD 2018-17-14](https://openairdocs.org/ad/2018-17-14)
- Docket: FAA-2018-0142 (https://www.regulations.gov/docket/FAA-2018-0142, where comments are filed)
- FR document: 2018-07819
- Official PDF: https://openairdocs.org/files/sha256/4b/0c/4b0c70f3f3b5633976a15837ffcbe660a05e23eeb0d70c88487999fdbb56524b (from https://www.govinfo.gov/content/pkg/FR-2018-04-17/pdf/2018-07819.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/04/17/2018-07819/airworthiness-directives-general-electric-company-cf34-8e-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/667D3FB0EE0AE55F86258272004B6C27.0001
- Page: https://openairdocs.org/proposed/FAA-2018-0142

## Summary

We propose to adopt a new airworthiness directive (AD) for all General Electric Company (GE) CF34-8E turbofan engines. This proposed AD was prompted by a report from GE regarding a quality escape of nonconforming thrust reverser fire seals. This proposed AD would require a one-time inspection of the gap between the core cowl seal and the pylon seal of the thrust reverser for correct gap width, and replacement of the seals, if needed. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Apr 17, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-07819, comments due Jun 1, 2018 (https://www.federalregister.gov/documents/2018/04/17/2018-07819/airworthiness-directives-general-electric-company-cf34-8e-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.