ASN Wikibase Occurrence # 360452
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| Date: | Saturday 21 May 1994 |
| Time: | 16:30 LT |
| Type: | Hillberg EH-101 |
| Owner/operator: | Donald Hillberg |
| Registration: | N10TE |
| MSN: | 01 |
| Total airframe hrs: | 6 hours |
| Engine model: | GARRETT GTPC-36-55-C |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Corona, CA -
 United States of America
|
| Phase: | Taxi |
| Nature: | Private |
| Departure airport: | (L66) |
| (L66) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT/AIRCRAFT DESIGNER WAS HOVERING AN EXPERIMENTAL HELICOPTER ABOUT 15 FEET ABOVE THE GROUND WHILE IT WAS BEING PHOTOGRAPHED BY ANOTHER HELICOPTER. THE PILOT TURNED THE TAIL OF HIS AIRCRAFT INTO THE WIND AND IT BEGAN TO SETTLE IN ITS OWN ROTORWASH. THE PILOT WAS UNABLE TO CONTROL THE DESCENT AND THE HELICOPTER TOUCHED DOWN IN SOFT TERRAIN AND THEN ROLLED OVER. THE HELICOPTER HAD ACCUMULATED 5.6 HOURS OF TEST-FLIGHT TIME AND THE PERFORMANCE LIMITATIONS OF THE AIRCRAFT HAD NOT BEEN ESTABLISHED.
Probable Cause: the pilot's loss of control of the helicopter while hovering downwind. A lack of test-flight data to establish the aircraft's performance limitations was a factor in the accident.
Accident investigation:
 |
|
Sources:
NTSB LAX94LA222
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 16-Mar-2024 07:29 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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