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Atlas / NTSB / SEA83FA052

NTSB CAROL · Event

Event SEA83FA052

1983-02-04 NEAR ASOTIN, Washington, United States Serious 1 aircraft Status: Completed

Aircraft involved

Factual narrative

WHILE FLYING IN THE VICINITY OF THE SNAKE RIVER, THE ENGINE LOST POWER. EMERGENCY LANDING AREAS WERE LIMITED. THE PLT ELECTED TO LAND ON A ROAD NEAR THE RIVER. WHILE IN A RIGHT TURN TO LINE UP WITH THE ROAD, THE ACFT COLLIDED WITH A SINGLE POWER LINE, THEN CRASHED. AN INVESTIGATION REVEALED THAT TE #5 PISTON PIN, PN 17658, HAD FAILED. THE AFT PISTON PIN BOSS HAD FAILED, WHICH PERMITTED THE FREE END OF THE CONNECTING ROD TO DAMAGE THE #5 CYLINDER AND THE CRANKCASE IN THE VICINITY OF THE #5 AND #6 CRANKSHAFT THROWS. TOTAL FLT TIME OF THE ENGINE WAS 699.5 HRS. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1983_SEA83FA052.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.