ASN Wikibase Occurrence # 366357
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Date: | Friday 17 August 1990 |
Time: | 09:15 LT |
Type: | Aerospatiale AS-350-B |
Owner/operator: | Temsco Helicopter |
Registration: | N26492 |
MSN: | 1066 |
Year of manufacture: | 1979 |
Total airframe hrs: | 4078 hours |
Engine model: | Turbomeca ARRIEL 1B |
Fatalities: | Fatalities: 0 / Occupants: 6 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Juneau, AK -
United States of America
|
Phase: | Initial climb |
Nature: | Unknown |
Departure airport: | |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:SHORTLY ATER TAKEOFF, THE HELICOPTER EXPERIENCED A COMPLETE ENGINE FAILURE. THE PILOT MADE AN EMERGENCY LANDING ONTO AN OPEN LOT. THE ENGINE FAILURE WAS DUE TO A FAILURE AND SEPARATION OF THE TURBINE INTERMEDIATE PINION DRIVEN GEAR WEB UNIT.
Probable Cause: FAILURE OF THE FREE TURBINE INTERMEDIATE PINION DRIVEN GEAR AND SUBSEQUENT DISINTEGRATION OF THE FREE TURBINE ASSEMBLY.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | ANC90LA147 |
Status: | Investigation completed |
Duration: | 2 years and 4 months |
Download report: | Final report |
|
Sources:
NTSB ANC90LA147
Revision history:
Date/time | Contributor | Updates |
20-Mar-2024 20:11 |
ASN Update Bot |
Added |
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