federal_register: 94-143
Data license: Public Domain (U.S. Government data) · Data source: Federal Register API & Regulations.gov API
This data as json
| document_number | title | type | abstract | publication_date | pub_year | pub_month | html_url | pdf_url | agency_names | agency_ids | excerpts |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 94-143 | Airworthiness Directives; Bell Helicopter Textron, Inc. Model 214B, 214B-1, and 214ST Helicopters | Proposed Rule | This document proposes the adoption of a new airworthiness directive (AD) that is applicable to Bell Helicopter Textron, Inc. Model 214B, 214B-1, and 214ST helicopters. This proposal would establish a mandatory retirement life of 60,000 high-power events for the main rotor trunnion (trunnion), which is currently not a life- limited part. This proposal is prompted by the manufacturer's analysis and retesting that has shown that the trunnion is sensitive to high- power events. The actions specified by the proposed AD are intended to prevent fatigue failure of the trunnion, that could result in loss of the main rotor and subsequent loss of control of the helicopter. | 1994-01-05 | 1994 | 1 | https://www.federalregister.gov/documents/1994/01/05/94-143/airworthiness-directives-bell-helicopter-textron-inc-model-214b-214b-1-and-214st-helicopters | Transportation Department | 492 | This document proposes the adoption of a new airworthiness directive (AD) that is applicable to Bell Helicopter Textron, Inc. Model 214B, 214B-1, and 214ST helicopters. This proposal would establish a mandatory retirement life of 60,000 high-power... |