GAA18CA312
2018-05-29 · Prescott, Arizona, United States · None · 1 aircraft · Status: Completed
Airport PRC
Aircraft involved
Probable cause & findings
The pilot’s improper fuel planning, which resulted in fuel exhaustion and the subsequent total loss of engine power.
Factual narrative
According to the pilot, about 15 minutes prior to reaching the destination airport during descent, the engine lost power. The pilot switched fuel tanks and the engine power was momentarily restored, but the engine stopped producing power, even though he thought it "was still running all the way to impact." The pilot force landed on a highway at night, and the right wing struck an object and separated from the airplane. The airplane came to rest inverted. According to the Federal Aviation Administration (FAA), Aviation Safety Inspector (ASI) that performed the post-accident airplane examination, the fuel lines to the fuel manifold were dry, and the fuel manifold valves were dry. He reported that the fuel strainer, the diaphragm, and the fuel filter in the duel manifold were unremarkable. Fuel was found in the gascolator. The FAA Inspector reported that during his interview with the pilot, "the pilot changed his story from fuel exhaustion, to fuel contamination." The Inspector reported that there were no signs of fuel contamination during the examination of the airplane's fuel system. According to the fixed base operator at the departure airport, the pilot requested 20 gallons of fuel. He then canceled his fuel request and walked out of the FBO. According to the pilot, about 15 minutes before reaching the destination airport during descent, the engine lost power. The pilot switched fuel tanks, and the engine power was momentarily restored, but the engine stopped producing power even though he thought it "was still running all the way to impact." The pilot conducted a forced landed on a highway at night, and the right wing struck an object and separated from the airplane. The airplane came to rest inverted. According to the Federal Aviation Administration (FAA) aviation safety inspector (ASI) that performed the postaccident airplane examination, the fuel lines to the fuel manifold were dry, and the fuel manifold valves were dry. He reported that the fuel strainer, the diaphragm, and the fuel filter in the duel manifold were unremarkable. Fuel was found in the gascolator. The FAA ASI reported that, during his interview with the pilot, "the pilot changed his story from fuel exhaustion, to fuel contamination." The inspector reported that there were no signs of fuel contamination during the examination of the fuel system. According to the fixed-base operator (FBO) at the departure airport, the pilot requested 20 gallons of fuel. He then canceled his fuel request and walked out of the FBO. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
FAA avdata. C = Cause, F = Factor.
- C Personnel issues-Task performance-Planning/preparation-Fuel planning-Pilot - C
- C Aircraft-Fluids/misc hardware-Fluids-Fuel-Fluid level - C
Verbatim from NTSB's published report. Source file
NTSB_2018_GAA18CA312.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
Search this event elsewhere
External sources are reported, not agency: signal that something happened, not fact about what happened.
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Related research
Matched on aircraft type or causal vocabulary (fuel exhaustion, fuel contamination). All research papers
- AOPA Air Safety Institute 2023 · Safety advisor Safety Advisor: Fuel Awareness
AOPA Air Safety Institute safety advisor on preventing fuel-exhaustion and fuel-starvation accidents in general aviation. Covers pre-flight fuel planning, reserve requirements (14 CFR 91.151, 91.167),…
- NASA NTRS 2019 · Abstract U.S. Civil Rotorcraft Accidents, 1963 through 1997
The U.S. National Transportation Safety Board (NTSB) has recorded 8,436 rotorcraft accidents during the period mid - 1963 through the end of 1997.
- NASA NTRS 2019 · Conference Paper Combined Contamination and Space Environmental Effects on Solar Cells and Thermal Control Surfaces
For spacecraft in low Earth orbit (LEO), contamination can occur from thruster fuel, sputter contamination products and from products of silicone degradation.
- NASA NTRS 2019 · Contractor Report (CR) A study of carburetor/induction system icing in general aviation accidents
An assessment of the frequency and severity of carburetor/induction icing in general-aviation accidents was performed. The available literature and accident data from the National Transportation Safet…
- NASA NTRS 2018 · Other Parachuting to Safety
NASA's Langley Research Center awarded Ballistic Recovery Systems, Inc., three Small Business Innovation Research (SBIR) contracts to research and develop a new, low cost, lightweight recovery system …