NTSB CAROL · Event
Event LAX92LA059
Aircraft involved
Probable cause & findings
FUEL EXHAUSTION DUE TO THE PILOT'S INADEQUATE PREFLIGHT INSPECTION, HER FAILURE TO ENSURE THAT AN ADEQUATE FUEL SUPPLY WAS ONBOARD AND HER DECISION NOT TO REFUEL THE AIRCRAFT PRIOR TO DEPARTURE. FACTORS IN THE ACCIDENT WERE: 1) THE INOPERATIVE LEFT FUEL GAGE; 2) THE FAILURE OF THE OPERATOR MANAGEMENT TO ADEQUATELY MAINTAIN THE AIRCRAFT AND 3) THE PILOT'S DECISION TO OPERATE THE AIRCRAFT WITH KNOWN DEFICIENCIES IN THE REQUIRED EQUIPMENT.
Factual narrative
THE PILOT SAID THAT PRIOR TO DEPARTURE AT EL PASO SHE VISUALLY LOOKED IN EACH FUEL TANK AND ESTIMATED THEY WERE TWO THIRDS FULL. SHE DID NOT PHYSICALLY MEASURE THE FUEL QUANTITY. THE LEFT FUEL GAGE WAS KNOWN TO BE INOPERATIVE BY THE PILOT. ON A TWO MILE FINAL APPROACH TO TUCSON THE ENGINE BEGAN TO SPUTTER. THE PILOT SWITCHED FUEL TANKS AND THE ENGINE QUIT. THE AIRCRAFT COLLIDED WITH ROUGH TERRAIN DURING THE SUBSEQUENT FORCED LANDING ATTEMPT IN A DESERT AREA EAST OF THE TUCSON AIRPORT. THE AIRCRAFT WAS EXAMINED BY FAA INSPECTORS. THE LEFT FUEL TANK WAS COMPLETELY DRY AND THE RIGHT TANK CONTAINED ONLY RESIDUAL FUEL. FUEL SYSTEM CONTINUITY WAS ESTABLISHED. THE FAA INSPECTORS REPORTED THAT THE OPERATOR KNEW ABOUT THE INOPERATIVE FUEL GAGE PRIOR TO THIS FLIGHT BUT DID NOT REPAIR IT DURING THE LAST MAINTENANCE PERIOD. AN OPERATIVE FUEL QUANTITY INDICATING SYSTEM IS REQUIRED BY REGULATION FOR FLIGHT. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1991_LAX92LA059.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 (fuel exhaustion, maintenance). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- Embry-Riddle Scholarly Commons 2026 · Journal article (IJAAA)
From Reactive to Predictive: A hybrid Trust-Mediated Adoption Framework for Data-Driven Maintenance in Distributed-Authority Aviation Environments
Modern aviation maintenance operates within increasingly data-intensive technological environments, yet the operational integration of predictive maintenance into routine decision-making remains incon…
- Semantic Scholar 2025 · Article (Applied Sciences)
Decision-Making Framework for Aviation Safety in Predictive Maintenance Strategies
The implementation of predictive maintenance (PM) in aviation presents unique challenges due to strict safety requirements, complex operational environments, and regulatory constraints.
- Embry-Riddle Scholarly Commons 2024 · Journal article (JAAER)
Low-Resource Automatic Speech Recognition Domain Adaptation – A Case-Study in Aviation Maintenance
With timeliness and efficiency being critical in the aviation maintenance industry, the need has been growing for smart technological solutions that optimize and streamline the different underlying ta…
- Embry-Riddle Scholarly Commons 2024 · Journal article (JAAER)
A New Trajectory in UAV Safety: Leveraging Reinforcement Learning for Distance Maintenance Under Wind Variations
In the field of aviation, safety is a critical cornerstone, and the operation of Unmanned Aerial Vehicle (UAV) systems is deeply connected with this principle.
- Embry-Riddle Scholarly Commons 2024 · Journal article (IJAAA)
Just Culture in Aviation: A Metaphorical Study on Aircraft Maintenance Students
Just Culture, a sub-dimension of safety culture, has been a prominent and debated topic in aviation safety in recent years.
- Embry-Riddle Scholarly Commons 2024 · Journal article (IJAAA)
Performance PRISM: A Comprehensive Framework For Performance Measurement In Aircraft Maintenance
Aircraft maintenance is governed by rigorous safety requirements and high operational complexity, demanding robust performance measurement frameworks to ensure optimal maintenance practices.
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