NTSB CAROL · Event
Event WPR18LA264
Registry · N5340Y
FAA Aircraft Registry record.
Make / Model
CESSNA T210N
Year of manufacture
1980 · 38 years old at event
Engine
CONT MOTOR TSIO-520 SER (300 hp)
Seats / Engines
6 seats · 1 engine
Last airworthiness date
19801124
ADS-B equipped
Yes — Mode-S A6C1B8
Registrant of record
CRIPE MICHAEL L
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The failure of the landing gear extension motor due to wear, which resulted in the right main landing gear not fully extending and locking into place during landing. Contributing to the accident was the pilot’s failure to ensure that all three landing gear were down and locked before landing.
Factual narrative
On September 14, 2018, about 1718 Pacific daylight time, a Cessna T210 airplane, N5340Y, was substantially damaged during landing roll at San Luis County Regional Airport (SBP), San Luis Obispo, California. The private pilot was not injured. The airplane was registered to and operated by the pilot under the provisions of Title 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed, and no flight plan was filed for the cross-country flight. The flight originated from John Wayne-Orange County Airport (SNA), Santa Ana, California at 1613, with a destination of SBP.The pilot reported that during the approach to land at SBP, he selected the landing gear to the DOWN position, after which he felt the gear extending into place. Following the gear extension, he observed the left main landing gear out the window and felt that everything was normal. As the airplane contacted the runway at 65 to 70 knots, he felt a "…bump up from the right" as the nose landing gear immediately made contact with the runway. The airplane veered to the right as it exited the runway, and completed a 180° turn before coming to rest in the runway safety area. Additionally, the pilot reported that he did not hear the landing gear warning horn, nor did he remember seeing the landing indicator lights during the approach. The pilot wore a noise cancelling headset during the flight. Initial examination of the airplane by a Federal Aviation Administration inspector revealed that the right main landing gear was retracted, and that the right horizontal stabilizer and the right elevator had impacted the ground and were buckled upwards. Subsequent to the airplane being relocated to a facility on the airport, the landing gear extension motor was replaced. The landing gear was tested, and no anomalies were noted. The warning horn sounded, and landing gear indicator lights illuminated during the testing. It was revealed during the examination that the landing gear extension motor was the original pump installed during the manufacturing of the airplane. When the motor was disassembled, internal wear was observed. The six-seat, high-wing, retractable tricycle-gear airplane, serial number (S/N) 21064173 was manufactured in 1981 and had accumulated 6,813.5 hours total airframe time at the last annual inspection on March 22, 2018. The private pilot reported that during the approach to land after a cross-country flight, he lowered the landing gear and felt the gear extending into place. After visually observing the left main landing gear out the window, he thought that everything was normal for landing. As the airplane contacted the runway about 65 to 70 knots, he felt a bump from the right as the nose landing gear contacted the runway. The airplane veered to the right as it exited the runway, then completed a 180° turn before coming to rest in the runway safety area; the right horizontal stabilizer and right elevator impacted the ground and were buckled upward. The pilot reported that he did not remember seeing the landing gear indicator lights during the approach, nor did he hear the landing gear warning horn; however, the pilot was wearing a noise-cancelling headset during the flight that could have prevented him from hearing the warning horn. Postaccident examination of the airplane revealed that the right main landing gear was collapsed. The landing gear extension motor was replaced, and no anomalies were noted when the landing gear was tested; the warning horn sounded, and landing gear indicator lights illuminated during the testing. It was revealed during the examination that the landing gear extension motor on the airplane at the time of the accident was the original pump installed during the airplane's manufacture about 37 years before the accident. The motor was disassembled and had internal wear, which likely prevented the landing gear from fully extending and locking into place during landing. 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 Aircraft-Aircraft systems-Landing gear system-Gear extension and retract sys-Fatigue/wear/corrosion - C
- F Personnel issues-Action/decision-Action-Lack of action-Pilot - F
Verbatim from NTSB's published report. Source file
NTSB_2018_WPR18LA264.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). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- 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 …
- arXiv 2023 · arXiv preprint
Automating Bird Diverter Installation through Multi-Aerial Robots and Signal Temporal Logic Specifications
This paper tackles the task assignment and trajectory generation problem for bird diverter installation using a fleet of multi-rotors.
- arXiv 2023 · arXiv preprint
Variation of Critical Crystallization Pressure for the Formation of Square Ice in Graphene Nanocapillaries
Two-dimensional square ice in graphene nanocapillaries at room temperature is a fascinating phenomenon and has been confirmed experimentally.
- arXiv 2023 · arXiv preprint
Polycrystallinity enhances stress build-up around ice
Damage caused by freezing wet, porous materials is a widespread problem, but is hard to predict or control. Here, we show that polycrystallinity makes a great difference to the stress build-up process…
- arXiv 2022 · arXiv preprint
Enhanced Prediction of Three-dimensional Finite Iced Wing Separated Flow Near Stall
Icing on three-dimensional wings causes severe flow separation near stall. Standard improved delayed detached eddy simulation (IDDES) is unable to correctly predict the separating reattaching flow due…
- Embry-Riddle Scholarly Commons 2021 · Journal article (JAAER)
Analysis on the Negative Emotional, Physiological, and Cognitive Responses Elicited from of the Activation of a Stall Alarm
Failing to identify an aerodynamic stall can lead to the inability of an aircraft to sustain flight. To warn pilots of an impending or fully-developed stall, many aircraft have safety devices installe…
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