ASN Wikibase Occurrence # 36050
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| Date: | Saturday 5 October 1991 |
| Time: | 14:48 LT |
| Type: | Bentley MONGOOSE A |
| Owner/operator: | Bentley, Richard F |
| Registration: | N7143K |
| MSN: | 1 |
| Total airframe hrs: | 113 hours |
| Engine model: | ROTAX 582 |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Boulder City, NV -
 United States of America
|
| Phase: | Take off |
| Nature: | Private |
| Departure airport: | |
| (NONE) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PLT'S MED CERT WAS EXPIRED & HE DID NOT HOLD A ROTORCRAFT CATEGORY RATING. DRG AN EXAM OF THE WRECKAGE, STRONG ROTATIONAL SIGNATURES WERE EVIDENT ON BOTH THE PROP & MAIN ROTOR BLADES. NO ACFT SYS ABNORMALITIES WERE FND DRG THE EXAM OF THE WRECKAGE. WHEEL TRACKS & IMPACT GND SCARS WERE FND ON THE DRY LAKE BED SURFACE. THREE TIRE TRACKS MATCHING THE DIMENSIONAL GEOMETRY OF THE LNDG GEAR WERE FND EXTENDING FOR A DISTANCE OF ABOUT 150 YDS. AN ADDITIONAL 15 YDS OF MAIN GEAR ONLY TRACKS WERE FND, WHICH TERMINATED AT A BERM. HVY GOUGE MARKS WERE NOTED ON THE TOP OF THE BERM, WHICH MATCHED ALL 3 LNDG GEAR. ABOUT 105 YDS BEYOND THE BERM, A GND IMPACT CRATER WAS OBSERVED, FOLLOWED BY A DISTURBANCE IN THE DIRT WHICH CULMINATED IN THE GYROCOPTER WRECKAGE. THE GYROCOPTER HAD NOT BEEN ISSUED AN AIRWORTHINESS CERTIFICATE IN ANY CATEGORY.
Probable Cause: THE PILOT'S SELECTION OF AN INADEQUATE TAKEOFF AREA WHICH WAS TOO SHORT FOR THE PREVAILING CONDITIONS.
Accident investigation:
 |
|
Sources:
NTSB LAX92LA006
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:22 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 11-Apr-2024 11:47 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Destination airport, Source, Narrative, Category, Accident report] |
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