ASN Wikibase Occurrence # 73863
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| Date: | Wednesday 7 April 2010 |
| Time: | 16:22 |
| Type: | Revolution Mini-500 |
| Owner/operator: | Private |
| Registration: | N118NR |
| MSN: | 0118 |
| Total airframe hrs: | 43 hours |
| Engine model: | Rotax 582 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Middleboro, Massachusetts -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Plymonth, MA (PYM) |
| Plymouth, MA (PYM) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During a 50-minute flight the helicopter pilot observed the engine coolant temperature and the exhaust gas temperature increase. The pilot attempted a precautionary landing to a field; however, as he was adding power to cushion the landing, the engine lost power due to overheating. The helicopter then landed hard and rolled over. Postflight examination of the helicopter revealed that a coolant hose was disconnected and corrosion was noted on the radiator fins, indicating that leakage had occurred over a period of time. No coolant or coolant residue was found during the engine examination.
Probable Cause: A loss of engine coolant, which resulted in a loss of engine power during the pilot’s attempt to cushion a precautionary landing. Contributing to the accident was a disconnected engine coolant hose and the pilot's inadequate preflight inspection.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 08-Apr-2010 03:30 | slowkid | Added |
| 08-Apr-2010 03:38 | RobertMB | Updated [Time, Aircraft type, Operator, Source] |
| 21-Dec-2016 19:25 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 26-Nov-2017 16:34 | ASN Update Bot | Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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