ASN Wikibase Occurrence # 133044
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Date: | Saturday 17 June 1995 |
Time: | 22:30 |
Type: | Bell 47G-5 |
Owner/operator: | Breen Aviation, Inc. |
Registration: | N7923J |
MSN: | 25040 |
Year of manufacture: | 1971 |
Total airframe hrs: | 7733 hours |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Destroyed |
Category: | Accident |
Location: | Coalinga, CA -
United States of America
|
Phase: | Take off |
Nature: | Ferry/positioning |
Departure airport: | 3CA4 |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:On June 17, 1995, at 2230 hours Pacific daylight time, a Bell 47-G5 helicopter, N7923J, lost power to the main rotor and collided with crops while returning from an aerial application operation near Coalinga, California. The aircraft was operated by Breen Aviation, Inc., of Lemoore, California. Visual meteorological conditions prevailed at the time and no flight plan was filed. The helicopter was destroyed in the collision sequence. The certificated commercial pilot, the sole occupant, was not injured. The flight originated at a private strip near Huron, California, about 2200 hours as a local area agricultural application flight.
The pilot reported that he had just lifted off from a refueling truck and was returning to base from applying chemicals to a field when he noted a split in the engine/rotor tachometer. The engine rpm's began to increase while the main rotor speed began to decay. He was attempting to correct the problem with collective and throttle manipulation when the helicopter collided with the ground.
The helicopter was examined by a Federal Aviation Administration (FAA) airworthiness inspector from the Fresno, California, Flight Standards District Office. He reported that no abnormalities were noted with either the engine, the transmission, or the freewheeling unit. Heat discoloration and burned oil residue were noted on the clutch.
PROBABLE CAUSE:clutch slippage for undetermined reasons. A factor in the accident was the helicopter's low above ground altitude, which limited the pilot's time and ability to recover main rotor rpm.
Sources:
NTSB id 20001207X03749
Revision history:
Date/time | Contributor | Updates |
21-Dec-2016 19:25 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
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