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ANC83LA040

1983-01-31 · WHITE MOUNTAIN, Alaska, United States · None · 1 aircraft · Status: Completed

Aircraft involved

Factual narrative

THE PLT WAS DEMONSTRATING SKI LANDINGS ON RIVER ICE. THE OAT WAS AT LEAST MINUS 20 DEG F. AFTER A PROLONGED POWER-OFF DESCENT HE RECOGNIZED A NEED FOR ADDITIONAL POWER BUT THE ENG WOULD NOT RESPOND. THE PLT ATTEMPTED TO STRETCH HIS GLIDE BUT THE ACFT STALLED & THE RIGHT SKI-GEAR COLLAPSED. THE PLT LATER STATED HE HAD NOT CONSIDERED THE EFFECT OF THE EXTREME COLD ON THE NON-WINTERIZED ENG. HE COULD NOT RECALL HAVING THE CARB HEAT CONTROL ON, NOR DID HE KNOW THAT THE HEAT WAS REQUIRED TO PRECLUDE A TOO-LEAN MIXTURE FOR THIS ENG. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1983_ANC83LA040.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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