ASN Wikibase Occurrence # 353627
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| Date: | Monday 26 October 1998 |
| Time: | 17:15 LT |
| Type: | Revolution Mini-500 |
| Owner/operator: | Private |
| Registration: | N500GQ |
| MSN: | 404 |
| Total airframe hrs: | 69 hours |
| Engine model: | Rotax 582 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Hickory, NC -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Weddington, NC |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot stated the engine lost power without warning while in cruise flight between 500-700 feet. An autorotaion was made to a clear area with high vegetation. During touchdown on the previously unnoticed uneven terrain, the main rotor hit the mechanical stop and contacted the tailboom. The helicopter then spun around 180 degrees and came to rest. Postcrash examination of the engine showed the rear cylinder had seized in the barrel. The pilot stated this was the second time this had happened. The engine had accumulated 46 hours since being rebuilt after the previous failure.
Probable Cause: The seizure of the rear piston in the cylinder barrel resulting in total loss of engine power and an autorotation which resulted in main rotor contact with the tail boom while touching down on unsuitable terrain.
Accident investigation:
 |
|
Sources:
NTSB MIA99LA017
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 10-Mar-2024 08:47 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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