federal_register: 99-33570
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 99-33570 | Airworthiness Directives; Boeing Model 747 Series Airplanes | Proposed Rule | This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Boeing Model 747 series airplanes. This proposal would require a one-time inspection to determine whether H-11 steel bolts are installed as attach and support bolts at the trailing edge flap transmissions, and replacement of any H-11 steel bolt with an Inconel bolt. This proposal is prompted by reports of fracture or cracking of H-11 steel bolts at the flap transmissions. The actions specified by the proposed AD are intended to prevent loss of a flap transmission, which could reduce lateral controllability of the airplane. | 1999-12-28 | 1999 | 12 | https://www.federalregister.gov/documents/1999/12/28/99-33570/airworthiness-directives-boeing-model-747-series-airplanes | https://www.govinfo.gov/content/pkg/FR-1999-12-28/pdf/99-33570.pdf | Transportation Department; Federal Aviation Administration | 492,159 | This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Boeing Model 747 series airplanes. This proposal would require a one-time inspection to determine whether H-11 steel bolts are installed as attach... |