ASN Wikibase Occurrence # 371430
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| Date: | Thursday 10 March 1988 |
| Time: | 12:45 LT |
| Type: |  Bell 206B |
| Owner/operator: | Helicopters, Inc. |
| Registration: | N13Q |
| MSN: | N13Q |
| Total airframe hrs: | 3811 hours |
| Engine model: | Allison C250-C20B |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Cahokia, IL -
 United States of America
|
| Phase: | Take off |
| Nature: | Executive |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE INSTRUCTOR WAS GIVING A PILOT AN EMPLOYMENT EVALUATION IN THE HELICOPTER WHEN DURING THE STARTUP THE PILOT PREMATURELY ADDED FULL POWER CAUSING THE HELICOPTER TO ROTATE RAPIDLY TO THE RIGHT. THE HELICOPTER HAD BEEN POSITIONED ON A TRAILER. DURING THE UNCONTROLLED ROTATION IT STRUCK A TRACTOR, ATTACHED TO THE TRAILER, WITH THE TAIL ROTOR. THE HELICOPTER CAME TO REST A FEW FEET FROM THE TRAILER AFTER THE MAIN ROTOR ASSEMBLY BROKE AWAY FROM THE HELICOPTER. THE TORQUE GAUGE IN THE HELICOPTER INDICATED IN EXCESS OF 100%.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB CHI88DCA01
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 26-Mar-2024 06:13 | ASN Update Bot | Added |
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