ASN Wikibase Occurrence # 381514
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Date: | Tuesday 5 July 1983 |
Time: | 08:00 LT |
Type: | Hiller UH-12E |
Owner/operator: | Bonanza Valley Aviation |
Registration: | N4028K |
MSN: | 5069 |
Total airframe hrs: | 545 hours |
Engine model: | Allison 250-C20B |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Brooten, MN -
United States of America
|
Phase: | Initial climb |
Nature: | Agricultural |
Departure airport: | Brooten, MN |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:THE HELICOPTER HAD JUST LIFTED OFF OF THE FLATBED OF A TRUCK WHEN IT STARTED TO SPIN. THE PLT LOWERED THE COLLECTIVE, REDUCED THE POWER & LANDED BESIDE THE TRUCK. DURING TOUCHDOWN, THE MAIN ROTOR BLADES STRUCK THE TRUCK. AN INVESTIGATION REVEALED THAT THE THRUST BEARING, PN 25200-3, IN THE TAIL ROTOR DRIVE WAS INSTALLED BACKWARDS. THIS ALLOWED THE BEVELED DRIVE GEAR TO MOVE FORWARD & BECOME DISENGAGED FROM THE TAIL ROTOR DRIVE GEAR.
Probable Cause:
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | CHI83LA297 |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Sources:
NTSB CHI83LA297
Revision history:
Date/time | Contributor | Updates |
02-Apr-2024 04:17 |
ASN Update Bot |
Added |
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