NTSB CAROL · Event
Event FTW96LA334
Aircraft involved
Probable cause & findings
improper routing of the nose landing gear hydraulic line by unknown maintenance personnel, allowing it to chafe on the nose wheel and develop a leak, which resulted in an inability to obtain a down-and-locked condition of the landing gear.
Factual narrative
On August 3, 1996, at 1512 mountain daylight time, a Cessna 210, N414N, landed with the landing gear in the trail position at Pueblo, Colorado. The private pilot and his passenger were not injured and the aircraft sustained substantial damage. The flight was operating under Title 14 CFR Part 91 and a VFR flight plan was filed. This personal flight departed La Junta, Colorado, at 1330, with an intended destination of Sterling, Colorado. According to the pilot, when the landing gear was raised after takeoff from La Junta, the gear failed to fully retract and it would not return to the down and locked position. The pilot said after attempting to lock the landing gear down by normal and emergency methods and radio discussion with ground facilities and air traffic control, he decided to proceed to Pueblo, Colorado, where there was long, hard surfaced runways, and adequate emergency services. After a fly by to confirm the landing gear configuration, a precautionary landing was performed on runway 35 with the landing gear in the trail position. During the landing slide, damage was sustained to the empennage, right wing, right horizontal stabilizer, and gear doors. The aircraft was examined by an FAA airworthiness inspector. According to his findings, the nose landing gear was chaffing on a hydraulic line and when the landing gear was raised, a leak in the line depleted the hydraulic fluid by pumping it overboard. Attempting to lower the landing further depleted the fluid and attempting to "pump" the landing gear down by the emergency hand pump emptied the sump. Schematic drawings and trouble shooting pages supplied by Cessna confirmed the reason for the fluid depletion. Improper routing of the hydraulic line allowed the line to chafe on the nose wheel. When the line was routed improperly is unknown. According to the pilot, both he and his passenger attempted to "push" the main landing gear to the down and locked position using the tow bar without success. Following departure on a cross-country flight, the landing gear would not retract or extend beyond the trail position. The pilot elected to proceed to an airport which had long/hard surface runways and emergency services. Subsequently, the airplane was damaged, during a landing with the gear partially extended. Examination following the landing revealed evidence that improper routing of the nose landing gear hydraulic line had allowed the line to chafe on the nose wheel and develop a leak. Subsequently, hydraulic fluid was depleted by being pumped overboard. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1996_FTW96LA334.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.
- NASA NTRS 2020 · Technical Memorandum (TM)
Evaluation Issues for a Flight Deck Interface; CAST SE-210 Output 2: Report 4 of 6
This report is part of a series of reports that addresses flight deck design and evaluation, written as a response to loss of control accidents.
- 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.
Browse the full corpus — academia portal ↗