NTSB CAROL · Event
Event ANC84FA017
Aircraft involved
Factual narrative
THE SEARCH & RESCUE FLT HAD BEEN DISPATCHED FROM BARROW TO AN ACFT ACCIDENT SITE ADJACENT TO THE NUIQSUT ARPT. ACCORDINGTO THE PLT, UPON ARRIVING AT NUIQSUT AT 300 FT AGL THE VISIBILITY WAS 2-3 MI. THEY LINED UP WITH SNOW MACHINES FOR A VISUAL APCH TO THE SITE & THE CO-PLT DISENGAGED THE AUTOPILOT FOR DESCENT. THE PIC CALLED OUT 200, 100 & 50 FT. AT THE 50 FT CALL-OUT THE ACFT IMPACTED TERRAIN & BOTH PLTS PULLED UP ON THE COLLECTIVE. RIGHT AFTER THE PIC SAID 'WE'RE AT 50 FEET' THE ACFT AGAIN STRUCK THE GROUND. THE PIC WAS GIVING ALTITUDE READOUTS FROM THE RADAR ALTIMETER. THE ACFT HAD IMPACTED FIRST ON THE EDGE OF A 50 FT GULLY. THE ACFT HAD APPROACHED OVER THE GULLY. BASED ON OLIKTOK, DEADHORSE & UMIAT WX THE NUIQSUT ARPT WAS ENGULFED IN FOG. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1983_ANC84FA017.txt.
Findings + structured fields enriched from FAA avall.mdb.
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data.ntsb.gov ↗.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type or causal vocabulary (autopilot). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- arXiv 2025 · arXiv preprint
ROSflight 2.0: Lean ROS 2-Based Autopilot for Unmanned Aerial Vehicles
ROSflight is a lean, open-source autopilot ecosystem for unmanned aerial vehicles (UAVs). Designed by researchers for researchers, it is built to lower the barrier to entry to UAV research and acceler…
- arXiv 2025 · arXiv preprint
ROSplane 2.0: A Fixed-Wing Autopilot for Research
Unmanned aerial vehicle (UAV) research requires the integration of cutting-edge technology into existing autopilot frameworks.
- arXiv 2024 · arXiv preprint
A Data-Driven Autopilot for Fixed-Wing Aircraft Based on Model Predictive Control
Autopilots for fixed-wing aircraft are typically designed based on linearized aerodynamic models consisting of stability and control derivatives obtained from wind-tunnel testing.
- arXiv 2022 · arXiv preprint
Experimental Flight Testing of a Fault-Tolerant Adaptive Autopilot for Fixed-Wing Aircraft
This paper presents an adaptive autopilot for fixed-wing aircraft and compares its performance with a fixed-gain autopilot.
- arXiv 2021 · arXiv preprint
An Adaptive Digital Autopilot for Fixed-Wing Aircraft with Actuator Faults
This paper develops an adaptive digital autopilot for a fixed-wing aircraft and compares its performance with a fixed-gain autopilot.
- arXiv 2020 · arXiv preprint
Reinforcement Learning for Robust Missile Autopilot Design
Designing missiles' autopilot controllers has been a complex task, given the extensive flight envelope and the nonlinear flight dynamics.
Browse the full corpus — academia portal ↗