LAX91LA048
1990-12-02 · Tonto Basin, Arizona, United States · None · 1 aircraft · Status: Completed
Aircraft involved
Probable cause & findings
THE FAILURE OF A CONNECTING ROD IN THE ENGINE.
Factual narrative
WHILE FLYING A 9,500 FT MSL THE PILOT, ALSO THE REGISTERED OWNER, OBSERVED AN INCREASE IN OIL TEMPERATURE FOLLOWED BY A DECREASE IN OIL PRESSURE. MOMENTS LATER OIL SMOKE EMANATED FROM THE ENGINE COMPARTMENT FOLLOWED BY A TOTAL LOSS OF ENGINE POWER. THE SUN BLINDED THE PILOT WHILE ON APPROACH TO A DIRT STRIP AND WHEN HE WAS ABLE TO SEE THE DIRT STRIP THE AIRPLANE'S ALTITUDE WAS INSUFFICIENT TO NEGOTIATE A LANDING ON THE STRIP. THE PLT ELECTED TO LAND IN AN ADJACENT OPEN AREA. DURING THE LANDING ROLL-OUT THE AIRPLANE'S LEFT WING STRUCK A BARN. ENGINE EXAM DSCLSD THE NO. 3 CONNECTING ROD FAILED AND ITS ASSOCIATED BEARING EXHIBITED EXTREME HIGH TEMP DISTRESS. DURING THE LAST ANNUAL INSP THE OIL ANALYSIS SHOWED HIGH CONCERTRATION OF IRON AND STEEL. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1990_LAX91LA048.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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