NTSB Identification: LAX90FA229.
The docket is stored on NTSB microfiche number 42690.
Accident occurred Saturday, June 23, 1990 in CORONA, CA
Probable Cause Approval Date: 12/14/1992
Aircraft: PIPER PA-24-260, registration: N9302P
Injuries: 3 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE PLT HAD ARRIVED AT LAKE HAVASU ON THE EVENING PRECEDING THE ACCIDENT, AND WHEN HE TIED DOWN THE AIRPLANE ALL OF THE FUEL TANK DOORS WERE CLOSED. THE NEXT DAY, WHEN PREFLIGHTING THE AIRPLANE FOR HIS FLIGHT TO TORRANCE, HE NOTICED THAT THE RIGHT AUX FUEL TANK DOOR WAS OPEN. WHILE ENROUTE TO TORRANCE, AND USING THE AUX FUEL TANK, THE ENGINE SUSTAINED A TOTAL LOSS OF POWER. EMERG PROCEDURES TO RESTART THE ENGINE WERE TO NO AVAIL AND THE PLT LANDED IN AN OPEN FIELD. A CUPFUL OF SAND WAS FOUND IN THE RIGHT AUXILIARY FUEL TANK, AND SAND CONTAMINATES WERE ALSO FOUND IN THE RIGHT AUXILIARY FUEL TANK PORT. SOME OF THE INJECTOR NOZZLES WERE PLUGGED WITH AN UNIDENTIFIED SUBSTANCE.

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

SABOTAGE WHEREIN UNKNOWN PERSON(S) PUT SAND IN THE AIRPLANE'S FUEL TANK.

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