ASN Wikibase Occurrence # 366434
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| Date: | Saturday 4 August 1990 |
| Time: | 09:45 LT |
| Type: |  Hiller UH-12E |
| Owner/operator: | Private |
| Registration: | N133HA |
| MSN: | 3033 |
| Total airframe hrs: | 1328 hours |
| Engine model: | LYCOMING VO-540-C2A |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Garrison, ND -
 United States of America
|
| Phase: | Take off |
| Nature: | Agricultural |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING THE TAKEOFF TRANSITION TO FORWARD FLIGHT THE HELICOPTER PILOT FELT THE LEFT ANTITORQUE PEDAL GO TO THE FLOOR, AND THE HELICOPTER BEGAN TO ROTATE UNCONTROLLED. THE PILOT MANEUVERED THE HELICOPTER TO A CLEAR AREA AND ATTEMPTED TO LAND. UNCONTROLLED CONTACT WAS MADE WITH THE TERRAIN. THE INVESTIGATION REVEALED THAT THE LEFT TAIL ROTOR CONTROL CABLE HAD FAILED DUE TO OVERLOAD IN AN AREA WHICH HAD BEEN SUBJECT TO MECHANICAL ABRASION.
Probable Cause: THE FAILURE OF THE HELICOPTER TAIL ROTOR CONTROL CABLE. A FACTOR RELATED TO THE ACCIDENT WAS THE CHAFING OF THE TAIL ROTOR CONTROL CABLE.
Accident investigation:
 |
|
Sources:
NTSB CHI90DTG02
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 20-Mar-2024 20:58 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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