NTSB CAROL · Event
Event ANC94LA021
Aircraft involved
Probable cause & findings
THE PILOT-IN-COMMAND'S FAILURE TO MAINTAIN PROPER APPROACH AIRSPEED.
Factual narrative
On December 03, 1993, at 1627 Alaska standard time, a wheel equipped Piper PA-32-300 airplane, N38393, operated by Kusko Aviation, Inc., collided with terrain during a visual approach to runway 34 at Napakiak, Alaska. The airline transport certificated pilot-in-command, the sole occupant, was not injured, and the airplane sustained substantial damage. The 14 CFR Part 135 on demand cargo flight departed Bethel, Alaska at 1623 and the destination was Napakiak. Visual meteorological conditions prevailed and a company VFR flight plan was in effect. The pilot told the NTSB investigator-in-charge during a telephone interview that he departed Bethel with two hours and 45 minutes of fuel and approximately 50 pounds of freight in the form of clothing. While performing a dog leg pattern to runway 34 from the base leg to the final approach heading, the stall warning horn came on. At the time, the airplane was in a 20 degree left bank descending turn with full flaps. While in the turn, the pilot recalled observing an indicated airspeed of between 50 and 55 knots and the plane's altitude was between 50 and 100 feet above the ground. The pilot said that he applied full power and maintained a nose down attitude in an attempt to regain airspeed. The airplane collided with the snow covered tundra approximately 300 feet short of the runway. The pilot reported that the plane's exterior surfaces were clear of ice prior to departing Bethel, that no precipitation was encountered en route, and that he experienced no problems with the plane's engine or flight controls. He estimated the weather at Napakiak at the time of his approach to be 600 feet scattered, visibility 3 miles, with no wind. THE PILOT REPORTED THAT WHILE PERFORMING A 20 DEGREE LEFT BANKING TURN FROM BASE LEG TO THE FINAL APPROACH HEADING WITH FULL FLAPS THE STALL WARNING HORN CAME ON. WHILE IN THE TURN, THE PILOT RECALLED OBSERVING AN INDICATED AIRSPEED OF BETWEEN 50 AND 55 KNOTS AND THE PLANE'S ALTITUDE WAS FROM 50 TO 100 FEET ABOVE THE GROUND. THE PILOT SAID THAT HE APPLIED FULL POWER AND MAINTAINED A NOSE DOWN ATTITUDE IN AN ATTEMPT TO REGAIN AIRSPEED. THE AIRPLANE COLLIDED WITH THE SNOW COVERED TUNDRA APPROXIMATELY 300 FEET SHORT OF THE RUNWAY. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1993_ANC94LA021.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
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 (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.
- NASA NTRS 2026 · Conference Paper
Computational Analysis of Steady State Aerodynamics of Transonic Truss-Braced Wing Configuration in Deep Stall
This study presents a computational investigation of steady state aerodynamics of the Subsonic Ultra-Green Aircraft Research (SUGAR) Transonic Truss-Braced Wing (TTBW) configuration over a wide range …
- arXiv 2023 · arXiv preprint
Automating Bird Diverter Installation through Multi-Aerial Robots and Signal Temporal Logic Specifications
This paper tackles the task assignment and trajectory generation problem for bird diverter installation using a fleet of multi-rotors.
- arXiv 2023 · arXiv preprint
Variation of Critical Crystallization Pressure for the Formation of Square Ice in Graphene Nanocapillaries
Two-dimensional square ice in graphene nanocapillaries at room temperature is a fascinating phenomenon and has been confirmed experimentally.
- arXiv 2023 · arXiv preprint
Polycrystallinity enhances stress build-up around ice
Damage caused by freezing wet, porous materials is a widespread problem, but is hard to predict or control. Here, we show that polycrystallinity makes a great difference to the stress build-up process…
- arXiv 2022 · arXiv preprint
Enhanced Prediction of Three-dimensional Finite Iced Wing Separated Flow Near Stall
Icing on three-dimensional wings causes severe flow separation near stall. Standard improved delayed detached eddy simulation (IDDES) is unable to correctly predict the separating reattaching flow due…
- Embry-Riddle Scholarly Commons 2021 · Journal article (JAAER)
Analysis on the Negative Emotional, Physiological, and Cognitive Responses Elicited from of the Activation of a Stall Alarm
Failing to identify an aerodynamic stall can lead to the inability of an aircraft to sustain flight. To warn pilots of an impending or fully-developed stall, many aircraft have safety devices installe…
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