ASN Wikibase Occurrence # 385993
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| Date: | Wednesday 25 April 2001 |
| Time: | 10:00 LT |
| Type: |  Cessna 140A |
| Owner/operator: | George Lair |
| Registration: | N666TC |
| MSN: | 15399 |
| Total airframe hrs: | 8243 hours |
| Engine model: | Continental C-90-12F |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Greeley, CO -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Hudson, CO (18V) |
| Greeley-Weld County Airport, CO (GXY/KGXY) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot made a conventional, full-stall landing. Upon touch down, the right main landing gear failed. The airplane skidded to a halt, buckling the fuselage and landing gear box, and damaging the wing spar. Metallurgical examiunation disclosed cracks had initiated in one of two holes used to attach the step assembly to the landing gear spring. Chevron (or beach) marks on the fractured surface pointed back to the crack initiation site, and were consistent with fatigue cracking. The adjacent area was characterized by dimples, indicating the final breakage was due to a ductile fracture under overload.
Probable Cause: total failure of the right main landing gear spring due to fatigue.
Accident investigation:
 |
|
Sources:
NTSB DEN01LA089
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 05-Apr-2024 10:02 | ASN Update Bot | Added |
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