# Airworthiness Directives; Centerpointe Aerospace Inc. Helicopters
> **Rule** · Final rule. · Published 2024-07-22 · Effective 2024-08-26 · 89 FR 58962
## Document
- **Document number:** 2024-16012
- **Category:** airworthiness
- **Manufacturer:** Centerpointe Aerospace Inc.
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 89 FR 58962
- **Publication date:** 2024-07-22
- **Effective date:** 2024-08-26
- **FAA docket:** Docket No. FAA-2023-1891
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all Centerpointe Aerospace Inc. (Centerpointe) Model S-58BT, S-58DT, S- 58ET, S-58FT, S-58HT, and S-58JT helicopters. This AD was prompted by an indication of a crack on the angle gearbox mount (AGBM). This AD requires repetitively performing a fluorescent penetrant inspection (FPI) of the AGBM at specified time intervals and, depending on the results, removing the AGBM from service. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2024/07/22/2024-16012/airworthiness-directives-centerpointe-aerospace-inc-helicopters)
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