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Atlas / NTSB / SEA89LA159

NTSB CAROL · Event

Event SEA89LA159

1989-08-26 ATLANTA, Idaho, United States Airport · 55H Serious 1 aircraft Status: Completed

Aircraft involved

Probable cause & findings

THE PILOT'S FAILUE TO ADEQUATELY COMPENSATE FOR THE DOWNDRAFT CONDITIONS. CONTRIBUTING FACTOR(S) WAS: THE DOWNWIND, DOWNDRAFT, AND HIGH DENSITY ALTITUDE WEATHER CONDITIONS, AND THE SURROUNDING MOUNTAINOUS TERRAIN.

Factual narrative

THE PILOT REPORTED THAT HE OVER FLEW THE RUNWAY AT 500-600 FT AGL TO DETERMINE WIND DIRECTION AND THAT THE RUNWAY WAS CLEAR OF OBSTRUCTIONS. AT THE END OF THE RUNWAY THE AIRPLANE ENCOUNTERED A DOWNDRAFT, LOST 300-400 FT, AND COLLIDED WITH TREES. THE AIRPLANE WAS FLYING WITH A TAILWIND OF 8-10 MPH. THE STRIP IS LOCATED IN A MOUNTAINOUS AREA WITH HIGH TIMBERED RIDGES THAT LIMIT MANEUVERING. ELEVATION IS 5,500 FT MSL. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1989_SEA89LA159.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. 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 ↗