NTSB CAROL · Event
Event LAX94LA301
Registry · N20707
FAA Aircraft Registry record.
Make / Model
CESSNA 172S
Year of manufacture
2020
Engine
LYCOMING IO-360-L2A (180 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
20200929
ADS-B equipped
Yes — Mode-S A1AE7C
Registrant of record
ATPCE LLC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
THE PILOT'S FAILURE TO MAINTAIN AN ADEQUATE AIRSPEED MARGIN WHILE MANEUVERING AND HIS SUBSEQUENT ENTRY INTO AN INADVERTENT STALL/MUSH. A FACTOR WAS FUEL STARVATION DUE TO THE PILOT'S FAILURE TO SELECT THE PROPER FUEL TANK.
Factual narrative
On July 30, 1994, at 1455 Pacific daylight time, a Cessna 182P, N20707, sustained substantial damage during a forced landing at Livermore, California. The aircraft was operated and flown by the owner and was on a personal cross-country flight. Visual meteorological conditions prevailed at the time and no flight plan had been filed. The certificated airline transport pilot sustained serious injuries. The flight originated from the Reid-Hillview airport San Jose, California, at 0545 on the day of the accident and had made an enroute stop in Livermore. The Federal Aviation Administration (FAA), Air Traffic Control Tower (ATCT), local controller reported that the aircraft departed Livermore Municipal airport on runway 25R, climbing to about 500 feet agl. The pilot stated that his engine began to run rough during the climb out. He switched his fuel selector from the "both" position to "right" and made a distress call on the tower frequency. The local controller cleared the aircraft to land on runway 7L. The pilot attempted to make a 180-degree turn back to the airport; however, he said he did not have sufficient power or altitude available to reach the runway. Witnesses reported that the aircraft appeared to stall at low altitude then impacted in an open field approximately 500 feet short of the departure end runway. An FAA inspector examined the aircraft after the accident and reported that fuel was seeping from the left main fuel tank vent line. He observed recovery personnel drain approximately 15 gallons of fuel from the left main tank into temporary storage containers. The inspector also reported that the aircraft's fuel selector valve was positioned on the right main fuel tank. During a visual inspection of the right main fuel tank, he was unable to detect any visible fuel. A post accident inspection of the aircraft revealed no mechanical engine or related system abnormalities. Further inspection of the aircraft fuel system revealed that the carburetor bowl was full of what appeared to be automotive fuel. The bowl was free of visible contaminants and the main carburetor jet was unobstructed. The gascolator drain was found jammed partially open and approximately 1/4 inch of fuel was in the gascolator bowl. The gascolator bowl was free of visible contaminants. The fuel line between the fuel selector and the common feed line from the right tank was crushed and buckled near the selector valve. There were no leaks or blockages found in any of the fuel lines or either tank. The aircraft owner's manual states that the capacity of each main tank is 32.5 gallons with 2.5 gallons unusable. The manufacturers representative stated that the final position of the aircraft after the mishap with a left wing low, nose low attitude, would be sufficient to allow previously unusable fuel in the right tank to flow from that tank through the selector to the carburetor. During climbout, the engine began to run rough. The pilot switched the fuel selector from the both to the right position and attempted to make a 180-degree turn back to the airport, but did not have sufficient power or altitude available to reach the runway. Witnesses reported that the aircraft stalled at low altitude and impacted in an open field approximately 500 feet short of the runway departure end. After the crash, fuel was observed seeping from the left main fuel tank vent line. Recovery personnel drained about 15 gallons of fuel from the left main tank. The aircraft's fuel selector switch was positioned on the right main fuel tank. There was no visible fuel in that tank. No mechanical abnormalities were identified during an examination of the engine and related systems. There were no leaks or blockages found in any of the fuel lines or either tank. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1994_LAX94LA301.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, fuel starvation). 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…
Browse the full corpus — academia portal ↗