On 19 Sep 2014, a CESSNA 170B UNDESIGNAT was involved in an aviation accident near Portland, OR. No fatalities were reported. Investigators recorded the probable cause as: The pilot's failure to maintain directional control of the airplane during the landing. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.
A tailwheel airplane veered left upon touchdown in a quartering tailwind; pilot overcorrected with right rudder and brake, leading to a ground loop and substantial left wing damage.
Accident Sequence
According to the pilot, the accident occurred during landing in a quartering tailwind. The tailwheel-equipped airplane touched down and began to veer left. The pilot applied right rudder and brake to correct the deviation, but this overcorrection caused a loss of directional control. The airplane subsequently ground looped.
Damage
The ground loop resulted in substantial damage to the left wing. The pilot reported that there were no preimpact mechanical malfunctions or failures that would have precluded normal operation of the airplane.
Pilot Report
The pilot reported no preexisting mechanical issues with the aircraft. The accident sequence was initiated by the veer upon touchdown and the subsequent overcorrection by the pilot.
Contributing factors
Causes
PilotDirectional control — Not attained/maintained