NTSB CAROL · Event
Event CHI94LA144
Aircraft involved
Probable cause & findings
THE PILOT-IN-COMMAND'S FAILURE TO PERFORM ACCURATE FUEL CONSUMPTION CALCULATIONS. A FACTOR WAS THE SOFT GRAVEL ROAD LANDING AREA.
Factual narrative
On May 1, 1994, at 2020 hours central daylight time, an amphibian Helio H-800, N4104D, operated by T. J. Farms of St. Cloud, Minnesota, was substantially damaged 10 miles northeast of St. Cloud Municipal Airport, St. Cloud, Minnesota. The pilot experienced a total loss of engine power and made a forced landing on a gravel road. The amphibious float equipped airplane went over an embankment, dragged a float tip in soft gravel, and came to a stop upside down. The private pilot was uninjured. Visual meteorological conditions existed at the time of the accident and winds were calm. The flight originated at Princeton Municipal Airport, Princeton, Minnesota, at 2015 hours central standard time to reposition the airplane to a private strip at Long Lake, southeast of St. Cloud, Minnesota. No flight plan was filed. Installation of amphibious floats had just been completed on the airplane. The pilot stated he had departed Cambridge Municipal Airport, Cambridge, Minnesota, 2.3 tachometer hours earlier with an estimated 45 gallons of fuel, performed touch and go landings, and was on his final leg of this flight. The pilot also stated he believes he exhausted his fuel supply. The fuel consumption of the Lycoming IO-720A engine installed on the H-800 is 33 gallons per hour (gph) at takeoff rated power and 23 gph at 75% cruise power as per Lycoming data. This was confirmed by the pilot and FAA inspector on scene. Post crash investigation revealed no fuel in the tanks, nor any indication of fuel spillage on the ground below the wreckage. THE PILOT-IN-COMMAND HAD FLOWN APPROXIMATELY 2.3 HOURS AFTER HIS INITIAL DEPARTURE WITH 45 GALLONS OF FUEL IN THE AMPHIBIOUS FLOAT EQUIPPED AIRPLANE. HIS ESTIMATION OF FUEL CONSUMPTION WAS 39 GALLONS PER HOUR (GPH) AT TAKEOFF POWER AND 23 GPH AT CRUISE. SEVERAL TOUCH AND GO LANDINGS WERE PERFORMED DURING THE FLIGHT. WHILE IN CRUISE FLIGHT A TOTAL LOSS OF ENGINE POWER OCCURRED AND A FORCED LANDING WAS MADE ON A GRAVEL ROAD. DURING LANDING, THE FLOAT NOSE WHEELS DUG INTO SOFT GRAVEL AND THE AIRPLANE FLIPPED OVER. POST CRASH INVESTIGATION REVEALED NO ENGINE ANOMOLIES, NO EVIDENCE OF FUEL IN THE TANKS, NOR ANY INDICATION OF FUEL SPILLAGE ON THE GROUND. THE PILOT STATED HE BELIEVED HE EXHAUSTED HIS FUEL SUPPLY. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1994_CHI94LA144.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 (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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