ASN Wikibase Occurrence # 299104
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Date: | Sunday 16 April 2000 |
Time: | 11:08 LT |
Type: | Bell 407 |
Owner/operator: | Papillon Airways Inc. |
Registration: | N175PA |
MSN: | 53154 |
Year of manufacture: | 1997 |
Total airframe hrs: | 1848 hours |
Engine model: | Allison 250-C47B |
Fatalities: | Fatalities: 0 / Occupants: 6 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | GRAND CANYON, Arizona -
United States of America
|
Phase: | Unknown |
Nature: | Passenger - Non-Scheduled/charter/Air Taxi |
Departure airport: | , AZ (KGCN) |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:About 5 minutes after takeoff, while in cruise flight, the pilot felt a few short 'clunks' and then heard grinding noise and felt violent shaking. The pilot elected to perform a precautionary, autorotative, off-airport landing. During the landing flare, the tail rotor and tail stinger contacted the ground. The tail rotor blades were damaged, the stinger broken, and the tail rotor gearbox was fractured. The vibration that the pilot felt was traced to a failed bearing at the oil cooler fan forward hanger. The bearing was sent to the helicopter manufacturer for examination; however, a fracture mode could not be identified due to damage to the fracture surfaces. An airworthiness directive applied to the bearing and was complied with 11 flight hours prior to the accident.
Probable Cause: The failure and subsequent disintegration of the oil cooler fan forward hanger bearing.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | LAX00LA156 |
Status: | Investigation completed |
Duration: | 1 year and 3 months |
Download report: | Final report |
|
Sources:
NTSB LAX00LA156
History of this aircraft
Other occurrences involving this aircraft Revision history:
Date/time | Contributor | Updates |
16-Oct-2022 02:35 |
ASN Update Bot |
Added |
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