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Atlas / NTSB / SEA96LA020

NTSB CAROL · Event

Event SEA96LA020

1995-11-15 DUFER, Oregon, United States None 1 aircraft Status: Completed

Aircraft involved

Probable cause & findings

A LOSS OF ENGINE POWER DUE TO A CRACKED CYLINDER HEAD. A FACTOR WAS THE EVASIVE MANEUVER TO AVOID A DITCH.

Factual narrative

On November 15, 1995, at 1610 Pacific standard time, a Snow S2C, N1694S, experienced a loss of engine power during an aerial application flight. The pilot initiated a forced landing to an open field. During the landing roll, the airplane collided with rough terrain near Dufer, Oregon. Visual meteorological conditions prevailed at the time and no flight plan was filed for the local flight. The airplane was substantially damaged and the commercial pilot, the sole occupant, was not injured. The flight had originated from Culver, Oregon, on November 15, 1995, at 1555. The pilot reported during an interview and subsequent written statement, that he was spraying a weed killer over a field at approximately ten feet above ground level, when the engine began to run rough and backfire. The airplane was unable to maintain altitude and the pilot initiated a forced landing to a field that was straight ahead and uphill. Prior to touch down, the pilot noticed a ditch and pulled up. The airplane stalled then landed hard. A post-crash inspection of the engine revealed a crack on the number five cylinder head. The crack travelled from the front to the rear spark plug hole. The pilot/owner reported that the engine had accumulated 950 hours since the last overhaul. Total time on the engine is unknown and a history on the cylinder is unknown. THE PILOT REPORTED THAT DURING AN AERIAL APPLICATION SPRAY RUN, THE ENGINE BEGAN TO RUN ROUGH AND BACKFIRE. THE AIRPLANE WAS UNABLE TO MAINTAIN ALTITUDE AND THE PILOT MADE A FORCED LANDING TO AN OPEN FIELD. PRIOR TO TOUCHDOWN, THE PILOT PULLED THE AIRPLANE UP TO MISS A DITCH. THE AIRPLANE STALLED AND THEN LANDED HARD. POSTCRASH INSPECTION OF THE ENGINE REVEALED A CRACK IN THE HEAD ON THE #5 CYLINDER. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1995_SEA96LA020.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type or causal vocabulary (stall). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗