NTSB CAROL · Event
Event LAX97LA080
Aircraft involved
Probable cause & findings
Fuel system water contamination due to the failure of both pilots to purge all water from the fuel system prior to departure. Contributing factors were: failure of the mechanic conducting the recent annual inspection to identify and replace a deteriorated fuel cap O-ring.
Factual narrative
On December 31, 1996, at 1033 hours Pacific standard time, a Cessna 182P, N9003M, collided with a fence at the approach end of runway 24 at the Fullerton, California, airport during an attempted return to the airport following a loss of engine power during the takeoff initial climb. The aircraft was operated by the pilot and was engaged in a dual instructional flight. Visual meteorological conditions prevailed in a light mist at the time and an IFR flight plan was filed for the cross-country instrument flight to Santa Barbara, California. The aircraft incurred substantial damage. Neither of the certified flight instructor/commercial pilots onboard were injured. The flight was originating at the time of the accident. According to both pilots, following receipt of their departure release and takeoff clearance, the aircraft took off and climbed to approximately 500 feet agl when the engine smoothly lost power. The engine power returned briefly, dropped off, surged, and then quit altogether. The pilot flying the aircraft attempted to return to the runway, but had insufficient altitude and collided with a fence at the approach end of runway 24. That pilot reported in his written report that a preflight had been conducted "per the Pilots [sic] operating handbook" and that no abnormalities were found. "Wing tanks were full. I initially drained the wing tanks and found slight trace of water in right tank and no trace in the left tank. The gascolator drain was also drained with only slight trace of water evident. Wings were rocked and drains were double checked . . ." The aircraft was examined by an FAA airworthiness inspector from the Long Beach, California, Flight Standards District Office. He reported finding the gascolator bowl half full of water and the carburetor bowl completely full of water. No water was found in either fuel tank when the sump drains were checked. The engine was then started and run for a 10-minute period with no abnormalities noted. Additionally, the FAA inspector found that the left tank fuel cap O-ring was deteriorated, with rust and corrosion present below the level of the O-ring. According to the FAA Inspector, the aircraft is routinely parked outside on the ramp. Heavy periods of rainfall occurred during the week prior to the accident flight. Review of the aircraft maintenance records disclosed that an annual inspection was completed 1 month and 3 flight hours prior to the accident. According to both pilots, following receipt of their departure release and takeoff clearance, the aircraft took off and climbed to approximately 500 feet agl when the engine smoothly lost power. The engine power returned briefly, dropped off, surged, and then quit altogether. The pilot flying the aircraft attempted to return to the runway, but had insufficient altitude and collided with a fence at the approach end of runway 24. That pilot reported that a preflight had been conducted per the POH and that no abnormalities were found. The aircraft was examined by an FAA airworthiness inspector who reported finding the gascolator bowl half full of water and the carburetor bowl completely full of water. No water was found in either fuel tank when the sump drains were checked. The engine was then started and run for a 10-minute period with no abnormalities noted. Additionally, the FAA inspector found that the left tank fuel cap O-ring was deteriorated, with rust and corrosion present below the level of the O-ring. The aircraft is parked outside on the ramp. Heavy periods of rainfall occurred during the week prior to the accident flight. An annual inspection was completed on the aircraft 1 month and 3 flight hours prior to the accident. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1996_LAX97LA080.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Academic papers and agency reports matching this event's aircraft type or causal vocabulary (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
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- 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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