# Airworthiness Directives; General Electric Company Turbofan Engines
> **Rule** · Final rule. · Published 2020-10-13 · Effective 2020-11-17 · 85 FR 64375
## Document
- **Document number:** 2020-22505
- **Category:** airworthiness
- **Manufacturer:** General Electric Company Turbofan
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 85 FR 64375
- **Publication date:** 2020-10-13
- **Effective date:** 2020-11-17
- **FAA docket:** Docket No. FAA-2020-0733
## 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 the detection of melt-related freckles in the billet, which may reduce the life limits of certain high-pressure turbine (HPT) rotor stage 2 disks and certain rotating compressor discharge pressure (CDP) HPT seals. This AD requires the replacement of the affected HPT rotor stage 2 disks and rotating CDP HPT seals. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/10/13/2020-22505/airworthiness-directives-general-electric-company-turbofan-engines)
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