NTSB CAROL · Event
Event ERA19LA255
Aircraft involved
Probable cause & findings
The failure of the right main landing gear to fully extend and lock for reasons that could not be determined.
Factual narrative
On August 21, 2019, about 1235 eastern daylight time, a Cessna 310L, N2299F, was substantially damaged when it was involved in an accident near Tampa, Florida. The commercial pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot stated that, while on landing approach, the right main landing gear would not indicate down and locked. He "wiggled" the light for the right main landing gear and changed the light bulb, but the right main landing gear did not indicate down and locked. He continued the approach and landed, but during the landing roll, the right main landing gear began to collapse. He aborted the landing and climbed to altitude, where he cycled the landing gear and tried to extend the right main landing gear using the emergency gear extension procedure multiple times. He also attempted abrupt maneuvers but was unable to get the right main landing gear down and locked. He then attempted a second landing, with the same results. After the aborted second landing, he contacted air traffic control, declared an emergency, and diverted to a tower-controlled airport. He performed one low pass and one fly-by of the air traffic control tower and was told that the right main landing gear appeared to be down. He returned for landing and, during landing, again felt the right main landing gear was collapsing. He aborted the landing then informed the tower controller that he would land gear-up. He subsequently performed a gear-up landing. The pilot/operator subsequently reported that the damage to the aircraft was substantial. During recovery of the airplane, airport maintenance personnel were unable to lock the right main landing gear using the emergency gear extension system but were able to manually push the gear over-center and brace it. They also secured the nose and left main landing gear over-center with heavy tie wraps and towed the airplane to the ramp. The airplane was examined by a Federal Aviation Administration (FAA) airworthiness inspector following recovery. The inspector reported that he could not determine the reason the right main landing gear would not go into the down and locked position; however, no disassembly was performed to gain access to all components of the right main landing gear retraction and extension system. During the landing approach, the pilot noted that the right main landing gear would not extend into the down and locked position, and, during touchdown, the gear began to collapse. He performed a go-around, climbed to altitude, and attempted emergency procedures and gloading maneuvers but was unable to extend the right main landing gear into the down and locked position. Ultimately, the pilot chose to land with the landing gear retracted. During recovery of the airplane from the runway, maintenance personnel were unable to extend and lock the right main landing gear, but they were able to extend and lock the nose and left main landing gears into position. The right main landing gear was manually extended and braced, then towed to the ramp. The pilot/operator of the aircraft reported that the damage to the aircraft was substantial. A complete examination of the right main landing gear was not performed; therefore, the reason for the right main landing gear anomaly could not be determined. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- C Not determined-Not determined-(general)-(general)-Unknown/Not determined - C
- C Aircraft-Aircraft systems-Landing gear system-(general)-Not specified - C
Verbatim from NTSB's published report. Source file
NTSB_2019_ERA19LA255.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 (go-around, 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…
- NASA NTRS 2025 · Conference Paper
A Training Study to Improve Monitoring During A Go-Around
As part of an FAA program to improve go-around (GA) safety, we were asked to determine if we could improve the performance of the Pilot Monitoring (PM) during a GA maneuver.
- 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.
- Flight Safety Foundation 2024 · FSF / AeroSafety World
Go-Around Safety Forum Findings
Foundation Go-Around Safety Forum technical findings — examines why pilots fail to execute go-arounds when criteria are met (stabilized approach gate not met, energy state out of envelope, traffic con…
- 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.
Browse the full corpus — academia portal ↗