ASN Wikibase Occurrence # 367084
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Date: | Thursday 26 April 1990 |
Time: | 16:30 LT |
Type: | Bell 47G5 |
Owner/operator: | Plymouth Copters Corp. |
Registration: | N8591F |
MSN: | 7812 |
Total airframe hrs: | 4189 hours |
Engine model: | LYCOMING L-34-22-31 |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Marion, MA -
United States of America
|
Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
Nature: | Agricultural |
Departure airport: | Plymouth, MA (KPYN) |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:THE PILOT REPORTED THAT HE WAS PERFORMING AN 'AG TURN' DURING AERIAL APPLICATION OPERATIONS WHEN A LOSS OF ENGINE POWER WAS NOTED. THE HELICOPTER DESCENDED INTO TREES AND BRUSH. THE PILOT STATED THAT 'CARBURETOR ICE WAS SUSPECTED THROUGHOUT THE DAY. CARBURETOR HEAT WAS APPLIED INTERMITTENTLY DURING THE DAY.' ON- SCENE INVESTIGATION REVEALED NO INDICATION OF MECHANICAL DIFFICULTY/MALFUNCTION; THERE WAS FUEL ON BOARD THE HELICOPTER, AND NO EVIDENCE OF CONTAMINATION IN THE FUEL SYSTEM. A POST- ACCIDENT ENGINE RUN WAS ACCOMPLISHED WITH NO INDICATION OF POWER LOSS.
Probable Cause: IMPROPER USE OF CARBURETOR HEAT BY THE PILOT RESULTING IN A LOSS OF ENGINE POWER. THE LACK OF SUITABLE TERRAIN FOR A FORCED LANDING WAS A FACTOR.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | NYC90DNA02 |
Status: | Investigation completed |
Duration: | 2 years and 7 months |
Download report: | Final report |
|
Sources:
NTSB NYC90DNA02
History of this aircraft
Other occurrences involving this aircraft
8 July 1996 |
N8591F |
Wiggins Airways Inc. |
0 |
Carver, MA |
|
sub |
Revision history:
Date/time | Contributor | Updates |
22-Mar-2024 07:21 |
ASN Update Bot |
Added |
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