# Airworthiness Directives; GE Aircraft Engines CT7-9B Turboprop Engines
> **Rule** · Final rule; request for comments. · Published 2003-05-16 · Effective 2003-06-02 · 68 FR 26478
## Document
- **Document number:** 03-11972
- **Category:** airworthiness
- **Manufacturer:** GE
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 68 FR 26478
- **Publication date:** 2003-05-16
- **Effective date:** 2003-06-02
- **FAA docket:** Docket No. 2003-NE-16-AD
## Abstract

This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 2003-08-52 that was sent previously to all known U.S. owners and operators of GE Aircraft Engines (GEAE) CT7-9B turboprop engines. This AD requires rigging the compressor variable geometry (VG) to VG schedule N. This AD is prompted by reports of 12 compressor stall events that occurred over a six-month period. The actions specified in this AD are intended to prevent a dual-engine in-flight shutdown or power loss due to a compressor stall during deceleration from takeoff power to climb power.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2003/05/16/03-11972/airworthiness-directives-ge-aircraft-engines-ct7-9b-turboprop-engines)
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