FTW85LA116
1985-02-03 · SHEFFIELD, Texas, United States · None · 1 aircraft · Status: Completed
Aircraft involved
Factual narrative
THE PLT STATED THE ENG FAILED COMPLETELY DURING CRUISE. THE CRANKSHAFT WAS FOUND SEPARATED DURING THE ENG TEARDOWN, WITH THE ROD AND BEARINGS ALSO SEPARATED. METALLURGICAL TESTING REVEALED FRACTURES TO BE FROM FATIGUE. ENG MAINTENANCE HAD BEEN IMPROPERLY ACCOMPLISHED DURING REPLACEMENT OF PISTONS AND ROD COMPONENTS. RODS HAD NOT BEEN PROPERLY ALIGNED, THUS ALLOWING BEARINGS AND CAPS TO RUB AND GROOVE THE CRANKSHAFT, CAUSING THE FAILURE POINT. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1985_FTW85LA116.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
Matched on aircraft type or causal vocabulary (maintenance). All research papers
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