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LAX92LA020

1991-10-20 · CHANDLER, Arizona, United States · None · 1 aircraft · Status: Completed

Airport P10

Aircraft involved

Probable cause & findings

AN ENGINE MALFUNCTION PRODUCED BY EXHAUST VALVES STUCK IN THE OPEN POSITION. CONTRIBUTING TO THE ACCIDENT WAS AN UNSUITABLE LANDING AREA AND A SIGN ADJACENT TO THE LANDING AREA.

Factual narrative

THE CERTIFICATED PRIVATE PILOT, THE SOLE OCCUPANT, WAS DEPARTING THE AIRPORT ON A PERSONAL FLIGHT IN THE LOCAL AREA. THE ENGINE BEGAN TO SPUTTER AND LOSE POWER SHORTLY AFTER TAKEOFF AT ABOUT 200 FT AGL. THE PILOT SELECTED AN EMERGENCY LANDING AREA ON A ROAD AT THE DEPARTURE END OF THE RUNWAY. DUE TO POWER LINES ACROSS THE INTENDED LANDING AREA, THE PILOT SELECTED A ROAD PARALLELING AN IRRIGATION DITCH. AFTER CLEARING THE POWER LINES, THE AIRPLANE TOUCHED DOWN ON THE ROAD. DURING THE LANDING ROLL, THE LEFT WING STRUCK A SIGN, CAUSING THE AIRPLANE TO SWERVE INTO THE IRRIGATION DITCH. THE AIRPLANE WAS SUBSTANTIALLY DAMAGED AND THE PILOT RECEIVED MINOR INJURIES. A POST ACCIDENT EXAMINATION OF THE ENGINE REVEALED THAT TWO CYLINDERS HAD LITTLE OR NO COMPRESSION. BOTH CYLINDERS HAD VALVES STUCK IN THE OPEN POSITION. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1991_LAX92LA020.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.