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ASN Wikibase Occurrence # 177512
Last updated: 22 August 2021
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Type:Silhouette image of generic B06 model; specific model in this crash may look slightly different
Bell OH-58A
Owner/operator:Maine Helicopters
Registration: N59MH
MSN: 69-16092
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Location:Columbia, ME -   United States of America
Phase: Landing
Departure airport:Columbia, ME (NONE)
Destination airport:
Investigating agency: NTSB
The pilot had been flying uneventfully for approximately 2 hours. The helicopter then landed in a private field, where additional chemical spray and fuel was loaded. About 1 minute after takeoff from the private field, at 200 feet agl, the engine lost partial power. The pilot attempted to perform a run-on landing to a field; however, the helicopter impacted trees prior to the field. Following the accident, a test run of the engine was performed using the original fuel control unit, power turbine governor, and engine fuel pump. The engine ran continuously at 95 percent power, with no interruptions or discrepancies noted. A fuel sample was recovered from the helicopter 6 days after the accident, and tested about 2 months later. The test revealed 800 parts per million (ppm) of water present. A fuel sample was also recovered from the fueling truck. Testing of that sample revealed 4 ppm of water present. In addition, the fuel truck was used before and after the accident with no problems noted. According to the Aviation Fuel Quality Control Handbook, the maximum acceptable level of free and dissolved water was 60 ppm.

Probable Cause: A partial loss of engine power for undetermined reasons, which resulted in a forced landing during cruise flight.




Revision history:

02-Jul-2015 17:36 Noro Added
21-Dec-2016 19:30 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
07-Dec-2017 17:59 ASN Update Bot Updated [Cn, Operator, Other fatalities, Nature, Departure airport, Source, Narrative]

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