NTSB CAROL · Event
Event MIA98LA142
Aircraft involved
Probable cause & findings
The inadvertent stall of the airplane and inadequate supervision of the student by the CFI-PIC while performing a soft field takeoff.
Factual narrative
On April 24, 1998, about 0718 eastern daylight time, a Cessna 172RG, N9303D, registered to and operated by Comair Aviation Academy, Inc., collided with terrain while descending shortly after takeoff, from the Central Florida Regional Airport, Sanford, Florida. Visual meteorological conditions prevailed at the time and no flight plan was filed for the 14 CFR Part 91 instructional flight. The airplane was substantially damaged and the certified flight instructor (CFI-PIC) and pilot-rated student (CFI trainee) sustained minor injuries. The flight was originating at the time of the accident. The CFI-PIC stated that the planned flight was lesson 17 of 18, and he pre-briefed the CFI trainee that he was to perform a soft field takeoff. The CFI trainee performed a preflight of the airplane, started the engine, and performed an engine run-up before takeoff. During the takeoff with the CFI trainee manipulating the controls, full power then full aft elevator control input was applied. The airplane climbed to a maximum height of about 20 feet above ground level, then the CFI trainee lowered the nose to accelerate in ground effect. The CFI-PIC noted that the airplane was veering to the left and applied full right rudder. He then reduced power and the right wing dropped and impacted the ground, followed by the left wing. The airplane then came to rest upright about 180 degrees from the original heading. The CFI-PIC further stated that he did not look at the airspeed indicator which was on his side of the instrument panel and knew the flight was departing with a reported 6 knot tailwind. According to the Director of Operations for the airport, the airplane impacted on grass about 650 feet north of the runway and 2,200 feet from the runway threshold. Examination of the airplane by a FAA inspector revealed no evidence of preimpact failure or malfunction of the aileron or elevator flight control cables. Additionally, the engine was removed from the airplane and the impact damaged propeller was replaced. The engine was started and found to operate normally. No determination could be made as to the rigging of the aileron flight controls due to the damage to both wings. According to the manager of maintenance operations, review of the aircraft logbook and the aircraft discrepancy write-up sheets from the day of the accident to April 16, 1997, revealed no entries pertaining to the aileron flight control system. According to another student of the flight school, when flying this airplane and performing power-on and power-off stalls, full right rudder would not hold directional control and the left wing would stall first. A weather observation taken at the airport about 4 minutes before the accident indicates in part that the wind was from 280 degrees at 6 knots. The flight was departing from runway 9R. The CFI-PIC stated that the CFI-trainee was performing a soft field takeoff with a 6 knot tailwind, and after rotation while attempting to accelerate, the airplane began veering to the left. He applied full right rudder input but the left turn continued. The CFI-PIC then reduced power, the right wing dropped, and the airplane impacted the ground. The airplane came to rest upright 180-degrees from the departure runway heading. Examination of the aileron and elevator flight control cables revealed no evidence of preimpact failure or malfunction. Impact damage to the airplane precluded determination of rigging of the aileron flight controls. According to another student of the flight school, while performing power-on and power-off stalls, full right rudder would not hold directional control and the left wing would stall first. Review of the airplane squawk sheets for the airplane revealed no discrepancies noted for the aileron flight controls. The engine was removed from the airplane, the impact damaged propeller was replaced, and the engine was started and found to operate normally. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1998_MIA98LA142.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 (stall, 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 2023 · Conference paper
The Value of Strong Partnerships to Build a Successful Aviation Maintenance Career Pathway Program for Transitioning Military Service Members
The aerospace industry is competing with other industries for a qualified workforce, and many of those competing industries are investing heavily in creating workforce development pipelines.
- 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…
- NASA NTRS 2026 · Conference Paper
Computational Analysis of Steady State Aerodynamics of Transonic Truss-Braced Wing Configuration in Deep Stall
This study presents a computational investigation of steady state aerodynamics of the Subsonic Ultra-Green Aircraft Research (SUGAR) Transonic Truss-Braced Wing (TTBW) configuration over a wide range …
- 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.
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