# Airworthiness Directives; General Electric Company Turbofan Engines
> **Rule** · Final rule; request for comments. · Published 2023-03-10 · Effective 2023-03-27 · 88 FR 14871
## Document
- **Document number:** 2023-04869
- **Category:** airworthiness
- **Manufacturer:** General Electric Company Turbofan
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 88 FR 14871
- **Publication date:** 2023-03-10
- **Effective date:** 2023-03-27
- **FAA docket:** Docket No. FAA-2023-0423
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain General Electric Company (GE) GE90-110B1 and GE90-115B model turbofan engines. This AD was prompted by a manufacturer investigation which discovered that florescent penetrant inspections (FPI) were not performed on the dovetail pressure face of certain high-pressure compressor (HPC) rotor spools at overhaul. This AD requires FPI of the affected HPC rotor stage 7-9 spool and, depending on the results of the inspection, replacement with a part eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/03/10/2023-04869/airworthiness-directives-general-electric-company-turbofan-engines)
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