Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Portions of DOT are affected by a lapse in appropriations. Website information may be outdated, transactions may be delayed, and inquiries may not be answered until funding is restored. Please monitor this page for updates.

Action

Final rule.

Summary

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.

Document

View PDF