ASN Wikibase Occurrence # 382306
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Date: | Thursday 31 March 1983 |
Time: | 17:30 LT |
Type: | Cessna 170B |
Owner/operator: | Private |
Registration: | N1955C |
MSN: | 26100 |
Year of manufacture: | 1953 |
Total airframe hrs: | 3500 hours |
Engine model: | Lycoming IO-360-B |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | North Pole, AK -
United States of America
|
Phase: | Landing |
Nature: | Private |
Departure airport: | Chicken, AK |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:THE PLT OF THE SKI EQUIPPED ACFT HAD TAKEN OFF FROM AN ABANDONDED STRIP THAT WAS IN A DETERIORATING CONDITION WITH ROCKS SCATTERED ALONG THE LANDING AREA. AFTER ARRIVING AT HIS DESTINATION, HE LANDED ON A WELL GRADED RWY WITH PACKED SNOW THAT WAS SUITABLE FOR EITHER WHEEL OR SKI OPERATION. AFTER TOUCHDOWN, THE ACFT BEGAN TO VEER TO THE LEFT. SUBSEQUENTLY, IT WENT OFF THE LEFT SIDE OF THE RWY & THE LEFT WING OF THE ACFT HIT THE LEFT WING OF A PIPER PA-12, N3140M. AFTER THAT, THE ACFT CONTINUED UNTIL IT STRUCK A SNOWBANK, THEN TRAVELED ABOUT 50 FT FURTHER BEFORE COMING TO REST. AN EXAM OF THE GEAR REVEALED THAT THE LEFT SKI WAS WORN. THE OVERLAYER WAS SCRAPED AWAY & APRX AN 18 INCH, OUTBOARD PORTION WAS BENT INWARD. THERE WAS EVIDENCE THAT THE SKI HAD HIT THE SNOWBANK WHILE THE LEFT WING WAS LOW CAUSING A TRANSVERSE FRACTURE & FAILURE OF THE LEFT AXLE (A NON-STANDARD C-185 AXLE). IMPROPER BOLTS HAD BEEN USED TO INSTALL THE NON-STANDARD AXLES & NO SHIMS HAD BEEN USED TO PROVIDE PROPER AXLE ALIGNMENT.
Probable Cause:
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | ANC83LA063 |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Sources:
NTSB ANC83LA063
Location
Revision history:
Date/time | Contributor | Updates |
02-Apr-2024 12:35 |
ASN Update Bot |
Added |
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