Primary finding
Probable cause
The pilot's inadequate preflight inspection of the aircraft and his failure to ensure that the control surface locks were removed prior to flight.
Investigator assessment
Analysis narrative
The pilot said he was on the takeoff ground roll at about 100 knots when he discovered that the control lock was still in place. The pilot said he attempted to remove the control lock but could not prior to the aircraft over running the departure end of the 3,400 foot long runway. The aircraft collided with a county sewage treatment building, separating the wings from the fuselage. The aircraft fuselage continued through the building and came to rest on rocks near the beach.
Source record
Factual narrative
-