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Landing Incident Results in Ground Loop and Wing Spar Damage

Lincoln, CA, United States

On September 19, 2012, a BOEING A75N1(PT17) operated by JUDD DONALD C was involved in an aviation accident near Lincoln, CA. No fatalities were reported. Investigators recorded the probable cause as: The pilot's failure to maintain directional control during the landing roll, which resulted in a ground loop. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards

During landing, the airplane veered right; the pilot's corrective inputs led to a ground loop, causing the right wing to contact the runway and damage the wing spar.

Incident Summary

A pilot reported a loss of directional control during landing, resulting in a ground loop and damage to the aircraft's wing. The pilot stated that while landing, the airplane began to divert to the right. He applied full left rudder input, but the airplane did not respond. Subsequently, he applied full left brake, which caused an overcorrection. The airplane then ground looped to the left.

Damage

During the ground loop, the right lower wing contacted the runway, damaging the lower right wing spar. No other damage was reported.

Pilot Statement

The pilot stated that the airplane and engine had no mechanical failures or malfunctions that would have precluded normal operations.

Contributing factors

Directional control — Not attained/maintainedPilot

Related events

Same aircraft family

Frequently asked questions

What happened in the 19 Sept 2012 BOEING A75N1(PT17) accident near Lincoln, CA?

During landing, the airplane veered right; the pilot's corrective inputs led to a ground loop, causing the right wing to contact the runway and damage the wing spar.

Were there any fatalities in the 19 Sept 2012 BOEING A75N1(PT17) accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 19 Sept 2012 involved a BOEING A75N1(PT17), operated by JUDD DONALD C, at Lincoln, CA.

What was the probable cause of the accident?

The pilot's failure to maintain directional control during the landing roll, which resulted in a ground loop.

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