# Airworthiness Directives; General Electric Company Turbofan Engines
> **Rule** · Final rule. · Published 2022-01-11 · Effective 2022-02-15 · 87 FR 1343
## Document
- **Document number:** 2022-00049
- **Category:** airworthiness
- **Manufacturer:** General Electric Company Turbofan
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 87 FR 1343
- **Publication date:** 2022-01-11
- **Effective date:** 2022-02-15
- **FAA docket:** Docket No. FAA-2021-0567
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain General Electric Company (GE) GE90 model turbofan engines. This AD was prompted by two separate in-flight shutdowns (IFSDs) resulting from failure of the transfer gearbox (TGB) radial bevel gear (TGB radial gearshaft). This AD requires visual inspection of the TGB radial gearshaft and, depending on the results of the inspection, replacement of the TGB radial gearshaft. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/01/11/2022-00049/airworthiness-directives-general-electric-company-turbofan-engines)
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