Accident de Havilland Canada DHC-2 Beaver N98JH,
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ASN Wikibase Occurrence # 369812
 
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Date:Thursday 15 September 1988
Time:18:09 LT
Type:Silhouette image of generic DHC2 model; specific model in this crash may look slightly different    
de Havilland Canada DHC-2 Beaver
Owner/operator:Willow Air Service
Registration: N98JH
MSN: 953
Year of manufacture:1955
Total airframe hrs:6800 hours
Engine model:P&W R-985
Fatalities:Fatalities: 0 / Occupants: 1
Aircraft damage: Substantial
Category:Accident
Location:Mcgrath, AK -   United States of America
Phase: En route
Nature:Private
Departure airport:Inoko River, AK
Destination airport:
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
WHILE CRUISING, THE PILOT-IN-COMMAND EXPERIENCED A ROUGH ENGINE AND FINALLY AN UNEXPLAINED POWER REDUCTION TO IDLE. HE WAS UNABLE TO GLIDE THE FLOAT EQUIPPED AIRPLANE TO A BODY OF WATER AND EXECUTED A FORCED LANDING ON THE TUNDRA WHERE THE AIRPLANE SUSTAINED SUBSTANTIAL DAMAGE. EXAMINATION OF THE ENGINE REVEALED A FAILED EXHAUST VALVE.

Probable Cause:

Accident investigation:
cover
  
Investigating agency: NTSB
Report number: ANC88LA138
Status: Investigation completed
Duration: 1 year 1 month
Download report: Final report

Sources:

NTSB ANC88LA138

Location

Revision history:

Date/timeContributorUpdates
24-Mar-2024 18:31 ASN Update Bot Added

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