federal_register: E7-25411
Data license: Public Domain (U.S. Government data) · Data source: Federal Register API & Regulations.gov API
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| document_number | title | type | abstract | publication_date | pub_year | pub_month | html_url | pdf_url | agency_names | agency_ids | excerpts |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E7-25411 | Airworthiness Directives; Erickson Air-Crane Incorporated Model S-64E and S-64F Helicopters | Proposed Rule | This document proposes adopting a new airworthiness directive (AD) for the specified Erickson Air-Crane Incorporated (Erickson) model helicopters. The AD would require determining whether each specified tail rotor blade assembly (blade assembly) has an affected serial number or part marking. If a blade assembly has a certain serial number or part marking, the AD would also require initially and repetitively inspecting the tail rotor blade for a crack in the strap and pocket areas. If a crack is found, this AD would also require, before further flight, replacing the blade assembly with an airworthy blade assembly that does not have an affected serial number or part marking. This proposal is prompted by several reports of cracking in the strap and pocket areas of the tail rotor blade. The actions specified by the proposed AD are intended to prevent failure of the tail rotor blade and subsequent loss of control of the helicopter. | 2007-12-31 | 2007 | 12 | https://www.federalregister.gov/documents/2007/12/31/E7-25411/airworthiness-directives-erickson-air-crane-incorporated-model-s-64e-and-s-64f-helicopters | https://www.govinfo.gov/content/pkg/FR-2007-12-31/pdf/E7-25411.pdf | Transportation Department; Federal Aviation Administration | 492,159 | This document proposes adopting a new airworthiness directive (AD) for the specified Erickson Air-Crane Incorporated (Erickson) model helicopters. The AD would require determining whether each specified tail rotor blade assembly (blade assembly) has an... |