ASN Wikibase Occurrence # 359603
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Date: | Monday 31 October 1994 |
Time: | 17:30 LT |
Type: | Bell UH-1E |
Owner/operator: | Private |
Registration: | N5088J |
MSN: | 154696 |
Total airframe hrs: | 7309 hours |
Engine model: | LYCOMING T53-L-13B |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Willits, CA -
United States of America
|
Phase: | En route |
Nature: | Unknown |
Departure airport: | |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:THE PILOT WAS CONDUCTING A SERIES OF SLING LOAD LOGGING OPERATIONS. THE PILOT DEPARTED THE LOGGING AREA AFTER SETTING DOWN THE LAST LOG. DURING THE CLIMB-OUT, THE TAIL ROTOR ASSEMBLY STRUCK A TREE AND SEPARATED FROM ITS ATTACH BRACKET. THE PILOT EXECUTED AN AUTOROTATION. THE HELICOPTER SUSTAINED A HARD LANDING AT THE COMPLETION OF THE AUTOROTATION. METALLURGICAL EXAMINATION OF THE HELICOPTER'S 90-DEGREE GEARBOX DISCLOSED NO EVIDENCE OF ANY FATIGUE ON THE FRACTURED SURFACES. THE WRECKAGE EXAMINATION REVEALED NO EVIDENCE OF ANY PREEXISTING AIRFRAME OR ENGINE MALFUNCTIONS OR FAILURES.
Probable Cause: that the pilot misjudged the distance between the helicopter and the trees.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | LAX95LA030 |
Status: | Investigation completed |
Duration: | 6 months |
Download report: | Final report |
|
Sources:
NTSB LAX95LA030
Location
Revision history:
Date/time | Contributor | Updates |
15-Mar-2024 12:39 |
ASN Update Bot |
Added |
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