# Airworthiness Directives; CFE Company CFE738-1-1B Turbofan Engines
> **Rule** · Final rule; request for comments. · Published 2000-10-24 · Effective 2000-11-08 · 65 FR 63535
## Document
- **Document number:** 00-26972
- **Category:** airworthiness
- **Manufacturer:** CFE Company CFE738-1-1B Turbofan
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 65 FR 63535
- **Publication date:** 2000-10-24
- **Effective date:** 2000-11-08
- **FAA docket:** Docket No. 2000-NE-40-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) that is applicable to CFE Company CFE738-1-1B turbofan engines. This action requires removing certain support assemblies and replacing them with support assemblies that have a new design. This amendment is prompted by a report of the loss of seal retention that resulted in contact between the seal face and the stage 2 high pressure turbine (HPT) rotor disk, and subsequent wear of the stage 2 HPT rotor disk. That condition resulted in separation of the stage 2 HPT wheel rim, and an uncontained failure of the stage 2 HPT rotor wheel. The actions specified in this AD are intended to prevent the static seal from moving forward, which could result in contact between the seal face and stage 2 HPT rotor, wear, and the possibility of an uncontained failure of the stage 2 HPT rotor.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2000/10/24/00-26972/airworthiness-directives-cfe-company-cfe738-1-1b-turbofan-engines)
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