BFO88LA045

1988-05-11 · YORKTOWN, Virginia, United States · None · 1 aircraft · Status: Completed

Airport PHF

Aircraft involved

N567MM Mooney M-20J None

Factual narrative

THE PLT WAS RETURNING TO THE ARPT AFTER A 20 MINUTE LOCAL FLIGHT. ABOUT 5 MILES FROM THE ARPT HE NOTICED THE OIL PRES/TEMP GAGES INDICATED ZERO EVEN AFTER HE CHECKED THE CIRCUIT BREAKERS-SHORTLY AFTERWARD THE ENGINE BEGAN TO LOSE POWER AND VIBRATE SEVERELY. THE PLT SHUT THE ENG DOWN AND LANDED IN A FIELD. EXAMINATION OF THE ACFT REVEALED THERE WAS OIL LEAKAGE THROUGH A SPLIT IN THE OIL GASKET LOCATED BETWEEN THE OIL FILTER CONVERTER PLATE AND ITS MOUNTING FLANGE. THERE WAS FAILURE OF THE CYL NO. 4 CONNECTING ROD BEARING BECAUSE OF THE LACK OF LUBRICATION. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1988_BFO88LA045.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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