ASN Wikibase Occurrence # 376184
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Date: | Tuesday 24 September 1985 |
Time: | 07:15 LT |
Type: | Hiller UH-12D |
Owner/operator: | Private |
Registration: | N67182 |
MSN: | 1160 |
Total airframe hrs: | 9118 hours |
Engine model: | LYCOMING VO-435-A1C |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Breese, IL -
United States of America
|
Phase: | En route |
Nature: | Agricultural |
Departure airport: | Breese, IL |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:THE PLT REPORTED THAT THE ENG BEGAN LOSING POWER WHILE HE WAS EN ROUTE AT AN ALT OF APRX 200 FT AGL. HE TURNED & INITIATED AN AUTOROTATION TO A ROAD CONSTRUCTION SITE. THE HELICOPTER LANDED TAIL LOW. SUBSEQUENTLY, THE TAIL BOOM WAS CHOPPED OFF & THE HELICOPTER BOUNCED & ROTATED 180 DEG. AN EXAM OF THE ENG REVEALED THE #4 PISTON HAD FAILED. THE PISTON HAD BURNT & MOLTEN ALUMINUM HAD TRANSFERRED TO THE STEM OF THE EXHAUST VALVE CAUSING IT TO STICK OPEN.
Probable Cause:
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | CHI85FEV04 |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Sources:
NTSB CHI85FEV04
Location
Revision history:
Date/time | Contributor | Updates |
29-Mar-2024 13:41 |
ASN Update Bot |
Added |
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