NTSB Identification: LAX92LA279.
The docket is stored on NTSB microfiche number 46870.
Nonscheduled 14 CFR
Accident occurred Saturday, July 04, 1992 in SHELTER COVE, CA
Probable Cause Approval Date: 09/28/1993
Aircraft: CESSNA 421B, registration: N929DB
Injuries: 4 Serious.
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 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.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: THE PILOT'S INADEQUATE PREFLIGHT INSPECTION OF THE AIRCRAFT AND HIS FAILURE TO ENSURE THAT THE CONTROL SURFACE LOCKS WERE REMOVED PRIOR TO FLIGHT.
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