federal_register: 98-34502
This data as json
| document_number | title | type | abstract | publication_date | pub_year | pub_month | html_url | pdf_url | agency_names | agency_ids | excerpts |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 98-34502 | Airworthiness Directives; Westland Helicopters Ltd. 30 Series 100 and 100-60 Helicopters | Rule | This amendment adopts a new airworthiness directive (AD) that is applicable to Westland Helicopters Ltd. (Westland) 30 Series 100 and 100-60 helicopters. This action requires the removal and replacement of conformal pinion quill shafts installed in certain main rotor gearboxes that fail to pass a magnetic drain plug inspection. This amendment is prompted by a report of a forced landing that occurred when a single conformal pinion quill shaft failed in a main rotor gearbox (MRGB). This condition, if not corrected, could result in the failure of a MRGB, and a subsequent forced landing or loss of control of the helicopter. | 1998-12-30 | 1998 | 12 | https://www.federalregister.gov/documents/1998/12/30/98-34502/airworthiness-directives-westland-helicopters-ltd-30-series-100-and-100-60-helicopters | https://www.govinfo.gov/content/pkg/FR-1998-12-30/pdf/98-34502.pdf | Transportation Department; Federal Aviation Administration | 492,159 | This amendment adopts a new airworthiness directive (AD) that is applicable to Westland Helicopters Ltd. (Westland) 30 Series 100 and 100-60 helicopters. This action requires the removal and replacement of conformal pinion quill shafts installed in... |