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| Date: | Monday 23 January 2023 |
| Time: | 17:30 LT |
| Type: |  Cessna 170A |
| Owner/operator: | |
| Registration: | N9534A |
| MSN: | 19095 |
| Year of manufacture: | 1949 |
| Total airframe hrs: | 4102 hours |
| Engine model: | Continental O-300-D |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Other fatalities: | 0 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Phoenix-Mesa Gateway Airport (IWA/KIWA), AZ -
 United States of America
|
| Phase: | Landing |
| Nature: | Training |
| Departure airport: | Mesa, AZ |
| Mesa, AZ | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot receiving instruction was conducting takeoffs and landings to regain tailwheel currency. During the second landing's roll out, the airplane began to veer left of the runway centerline. The pilot applied correction with right rudder; however, he overcorrected and the airplane veered to the right. The pilot and the flight instructor both applied left rudder and brake to counteract the veer to the right. However, the veer to the right developed into a ground loop and the left main landing gear leg fractured. The airplane dropped onto the fractured end of the landing gear leg and came to rest upright.
A metallurgical examination of the fractured landing gear leg revealed small fatigue cracks along the radius of the brake line retainer clip bore and outboard face. These small fatigue cracks concentrated stress in the radius, facilitating a premature overstress fracture due to the stresses on the part during the landing.
Probable Cause: The pilot's failure to maintain directional control during the landing roll out and the preexisting fatigue cracks in the left main landing gear leg, which resulted in the leg's premature overstress fracture during the ground loop.
Accident investigation:
 |
|
Sources:
NTSB WPR23LA096
https://flightaware.com/live/flight/N9534A
History of this aircraft
Other occurrences involving this aircraft
| 6 May 1994 | N9534A | Private | 0 | Boca Raton, FL | |
sub |
Location
Images:
Photo of aircraft at Mesa Gateway 3 months before accident.
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 31-May-2024 06:31 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative, Accident report] |
Corrections or additions? ... Edit this accident description
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