ASN Wikibase Occurrence # 359817
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| Date: | Friday 9 September 1994 |
| Time: | 13:40 LT |
| Type: |  Hiller UH-12E |
| Owner/operator: | Private |
| Registration: | N12RF |
| MSN: | 2102 |
| Total airframe hrs: | 7868 hours |
| Engine model: | LYCOMING VO-540-C2A |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Grand Junction, CO -
 United States of America
|
| Phase: | Landing |
| Nature: | Training |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE ON A SOLO INSTRUCTIONAL FLIGHT, PRACTICING TOWARDS GAINING A HELICOPTER RATING, THE PILOT WAS CONDUCTING A PRACTICE AUTOROTATION TO A SAND BAR. THE AIRSPEED AND SINK RATE BECAME EXCESSIVE AND THE HELICOPTER LANDED HARD RESULTING IN THE MAIN ROTOR BLADES STRIKING THE TAIL BOOM.
Probable Cause: IMPROPER REMEDIAL ACTION IN CORRECTING FOR EXCESSIVE SPEED AND SINK RATE DURING AN AUTOROTATION. FACTORS WERE: HIGH DENSITY ALTITUDE, EXCESSIVE AIRSPEED AND SINK RATE.
Accident investigation:
 |
|
Sources:
NTSB FTW94LA296
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 15-Mar-2024 14:55 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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