ASN Wikibase Occurrence # 308560
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| Date: | Saturday 18 February 2023 |
| Time: | 13:15 LT |
| Type: | Titan Tornado II |
| Owner/operator: | |
| Registration: | N9168P |
| MSN: | D00912COHK0376 |
| Year of manufacture: | 2007 |
| Total airframe hrs: | 1212 hours |
| Engine model: | Rotax 912 ULS |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Cloquet, MN -
 United States of America
|
| Phase: | Take off |
| Nature: | Private |
| Departure airport: | Fredenberg Township, MN |
| Cloquet Carlton County Airport, MN (KCOQ) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot stated that while taking off on a frozen lake with hard-packed snow, the right main landing gear separated from the airplane. He continued the takeoff and landed the airplane without further incident on a snow-covered lake near his home. The airplane sustained substantial damage to the vertical stabilizer due to impact from the right main landing gear.
A metallurgical examination of the right main landing gear leg assembly revealed that bilateral fatigue cracks originated from the inner wall of a cross-drilled hole near the right gear leg socket. Eventually, overload and bending stresses in the direction of the fatigue cracks resulted in the right gear leg separating. It was unclear why the hole was drilled. There is an identical hole in the same spot on the left landing gear leg.
Probable Cause: The fatigue failure of the right landing gear leg that resulted in its separation from the airplane during takeoff.
Accident investigation:
 |
|
Sources:
NTSB CEN23LA110
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 28-Apr-2024 09:44 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Source, Narrative, Accident report] |
Corrections or additions? ... Edit this accident description
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