Amateur-built JA30 SUPERSTOL N614WB accident near Chesterfield, Missouri

Probable cause

The pilot’s failure to maintain directional control of the airplane during the landing roll in crosswind conditions.

NTSB analysis

The pilot of the tailwheel-equipped airplane reported that, after several attempts to land, the wind had changed to a more favorable direction and that "[he] was confident in [landing] the plane." He added that the approach was uneventful but that, during the landing roll, "a cross wind started pushing the aircraft and tail left." Subsequently, the airplane ground looped to the right.

The airplane sustained substantial damage to the left wing, left wing aileron, and right wing rear spar.

The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

The automated weather observation system on the airport, about the time of the accident, reported that the wind was from 180° at 10 knots. The pilot landed on runway 8L.

Text from the NTSB. Open the NTSB docket for GAA17CA246 for the full record.