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Aviation Accident

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NTSB Identification: WPR15LA042
14 CFR Part 91: General Aviation
Accident occurred Saturday, November 15, 2014 in La Verne, CA
Probable Cause Approval Date: 03/06/2017
Aircraft: CESSNA U206G, registration: N9420R
Injuries: 3 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

The private pilot reported that, during landing, he had difficulty controlling the airplane after the nosewheel settled onto the runway. The pilot stated that the airplane initially veered to the left; however, he was able to correct its track. The airplane then veered left a second time, he was unable to regain control, and the airplane subsequently exited the runway surface. During the accident sequence, the right wing struck the ground.

Postaccident examination of the airplane revealed a deflated nosewheel oleo strut; however, the investigation was unable to determine whether the strut became deflated before or during the accident sequence. The airplane displayed proper nosewheel steering when weight was applied on the nosewheel strut. No further anomalies were noted with the airplane's nosewheel steering, nosewheel assembly, braking system, or tires; thus, the reason for the loss of control could not be determined.


The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
  • The pilot's loss of directional control during the landing roll for reasons that could not be determined, because postaccident examination of the nosewheel assembly revealed no anomalies that would have precluded normal operation.