NTSB Identification: LAX97LA201.
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Accident occurred Saturday, June 07, 1997 in LEMOORE, CA
Probable Cause Approval Date: 05/21/1998
Aircraft: Boeing Stearman A75N1, registration: N450MF
Injuries: 1 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 pilot stated that he was unable to control a sudden swerve to the left during the landing rollout, so he added full power to go around. The power application torqued the airplane into a fully developed ground loop from which it came to rest after approximately 135 degrees of turn. During the turn, both main gear collapsed, allowing the propeller to contact the runway surface. The pilot also stated that the right brake faded during the landing rollout, and he felt that this contributed to his inability to control the initial swerve.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

failure of the pilot to maintain directional control of the airplane during the landing, which resulted in a ground swerve and subsequent overload failure of the main landing gear. Related factors were a left crosswind and partial loss of the right wheel brake.

Full narrative available

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