NTSB CAROL · Event
Event MIA97LA134
Aircraft involved
Probable cause & findings
chafing of an electrical cable that was routed through the firewall, which resulted in electrical arching and an in-flight fire.
Factual narrative
On April 10, 1997, about 1426 eastern daylight time, a Navion A, N40FL, registered to Piggy Bank Motors Company, was substantially damaged by fire after landing at the Quincy Municipal Airport, Quincy, Florida. Visual meteorological conditions prevailed at the time and no flight plan was filed for the maintenance test flight. The private-rated pilot, the sole occupant, was not injured. The flight originated about 5 minutes earlier. The pilot stated to an FAA inspector that he intended to remain in the traffic pattern after takeoff and while on final approach, he smelled what he thought was an electrical fire and felt heat by his legs. He landed and after stopping the airplane, fire erupted in the cockpit. He then exited the airplane and bystanders extinguished the fire using water. According to the FAA inspector, the airplane had been to the facility for an annual inspection and reportedly no work was performed to the instrument panel. The mechanic who performed the annual inspection reported using the airplane manufacturers checklist. The mechanic also stated that postaccident examination of the airplane revealed electrical arching at the firewall where the electrical cable from the battery relay to the starter relay transits through. The battery in the airplane is located aft of the aft seat on the left side of the airplane. The airplane was on a test flight after completion of an annual inspection. The pilot stated that shortly after takeoff, he first smelled an electrical fire, then felt heat on his legs. He remained in the pattern and landed. After exiting the airplane, a fire erupted in the cockpit area. Bystanders used water to help extinguish the fire. Postaccident examination of the airplane revealed electrical arching on the firewall from a cable that went through the firewall. The electrical cable was routed from the battery relay (aft of the aft seat) to the starter relay, which was on the upper right section of the firewall. The mechanic, who performed the inspection, used the manufacturers checklist. Reportedly, no work had been performed on the instrument panel. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1997_MIA97LA134.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 (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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