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SEA91LA117

1991-05-27 · KLAMATH FALLS, Oregon, United States · Minor · 1 aircraft · Status: Completed

Aircraft involved

Probable cause & findings

THE LOSS OF ENGINE POWER DUE TO FAILURE OF THE NUMBER 5 CYLINDER ROD BEARING WHICH RESULTED FROM LACK OF LUBRICATION OF THE MAIN BEARING.

Factual narrative

THE ACFT ENGINE QUIT IN CRUISE FLT AND THE PILOT MADE A FORCED LANDING IN A FIELD. THE ACFT IMPACTED IRRIGATION EQUIP DURING LANDING ROLL AND NOSED OVER. EXAM OF THE ENGINE REVEALED EVIDENCE OF A SPUN MAIN ROD BEARING IN THE NO 5 CYLINDER, OVERTEMP AND FAILURE OF THE BEARING. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1991_SEA91LA117.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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