ASN Wikibase Occurrence # 177512
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Date: | Thursday 13 May 2004 |
Time: | 07:35 |
Type: | Bell OH-58A |
Owner/operator: | Maine Helicopters |
Registration: | N59MH |
MSN: | 40313 |
Year of manufacture: | 1969 |
Total airframe hrs: | 4234 hours |
Engine model: | Rolls-Royce T63-A-720 |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Columbia, ME -
United States of America
|
Phase: | Landing |
Nature: | Agricultural |
Departure airport: | Columbia, ME |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative: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.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | NYC04LA122 |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Sources:
NTSB:
https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20040519X00613&key=1 Location
Revision history:
Date/time | Contributor | Updates |
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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