NTSB CAROL · Event
Event MIA89LA085
Registry · N5454X
FAA Aircraft Registry record.
Make / Model
CESSNA 340A
Engine
CONT MOTOR TSIO-520 SER (300 hp)
Seats / Engines
6 seats · 2 engines
Last airworthiness date
19840816
ADS-B equipped
Yes — Mode-S A6ED79
Registrant of record
TOUCAN AVIATION LLC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
SEIZURE OF THE RIGHT MAIN LANDING GEAR UPPER DOWNLOCK TOP BUSHING, AND THE FAILURE OF OTHER MAINTENANCE PERSONNEL TO PROPERLY RIG THE LANDING GEAR DOWN LIGHT MICRO SWITCHES.
Factual narrative
THE PILOT EXPERIENCED A COLLAPSE OF THE RIGHT MAIN LANDING GEAR DURING TAXI. THE INVESTIGATION REVEALED THAT THE COLLAPSE WAS DUE TO THE SEIZURE OF THE UPPER DOWNLOCK TOP BUSHING. IT ALLOWED THE MAIN LANDING GEAR TO BE RIGGED IMPROPERLY AND NOT BE FULLY DOWN AND LOCKED WHEN THE GEAR DOWN LIGHT WAS ILLUMINATED. THE MECHANIC STATED THAT THE EXPANDED INSPECTION PROCEDURES SPECITY THAT THE LANDING GEAR BUSHING MUST BE FREE. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1989_MIA89LA085.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.
Browse the full corpus — academia portal ↗