ASN Wikibase Occurrence # 361382
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Date: | Thursday 2 September 1993 |
Time: | 09:30 LT |
Type: | Bensen B8M |
Owner/operator: | Walter Lach |
Registration: | N8447 |
MSN: | 1122 |
Total airframe hrs: | 617 hours |
Engine model: | CONTINENTAL C-65 |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Fall River, MA -
United States of America
|
Phase: | Landing |
Nature: | Private |
Departure airport: | |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:AS THE PILOT WAS FLARING TO LAND, THE ROTOR CONTROL ARM (CONTROL STICK) FAILED AT A LOCATION JUST ABOVE THE PILOT'S HEAD. THE GYROCOPTER THEN ROLLED OVER AND CRASHED. A METALLURGICAL EXAMINATION REVEALED THE CONTROL ARM HAD FAILED FROM FATIGUE. THE FATIGUE ORIGINATED WHERE THE CONTROL ARM HAD BEEN CHAFED BY A LOOSE CLAMP.
Probable Cause: FATIGUE FAILURE OF THE GYROCOPTER'S MAIN ROTOR CONTROL ARM. fACTORS RELATED TO THE ACCIDENT WERE: A LOOSE CLAMP ON THE ROTOR CONTROL ARM, DUE TO INADEQUATE MAINTENANCE OR INSPECTION, WHICH RESULTED IN CHAFING OF THE CONTROL ARM.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | BFO93LA149 |
Status: | Investigation completed |
Duration: | 10 months |
Download report: | Final report |
|
Sources:
NTSB BFO93LA149
Revision history:
Date/time | Contributor | Updates |
16-Mar-2024 17:52 |
ASN Update Bot |
Added |
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