ERA12LA299 · Cessna 210
Cessna 210 · Accident: system/component malfunction/failure (non-power) on approach
From KTX · Kennett, MO to Gatlinburg-Pigeon Forge Airport (GKT)
Narrative check · The NTSB narrative appears to contradict this record's departure or destination. Values are shown as recorded, not corrected; compare with the narrative.
Event
- NTSB case
- ERA12LA299
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Cessna 210
- Aircraft type
- Cessna 210
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N96050
- Operator
- Mcmillen Michael P
- Onboard fatalities
- Unknown
- Route Possible conflict
- From KTX · Kennett, MOTo Gatlinburg-Pigeon Forge Airport (GKT), Sevierville, TN
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Approach
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- System/component malfunction/failure (non-power)
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Aircraft › Aircraft systems
- Aircraft › Fluids/miscellaneous hardware
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot entered the airport traffic pattern for landing and completed the before-landing checklist. He lowered the landing gear, and he noticed that the hydraulic unit stayed on and that the landing gear green light indication in the cockpit did not illuminate. He looked outside and the nosewheel was extended, but both main landing gear were only partially extended. He recycled the landing gear with negative results. He also added fluid to the hydraulic fill port in the cockpit, attempted to recycle the landing gear, and conducted some negative "g’s," but the gear did not fully extend. The pilot subsequently performed a straight-in approach with the nosewheel down and the main landing gear partially extended. During touchdown, the airplane veered to the left off the side of the runway and came to rest upright in a grassy area.
Examination of the airplane revealed a hole in the landing gear down-pressure hose, which prevented the landing gear from fully extending. Review of service information from the airplane manufacturer revealed that the hoses should be replaced every 5 years. The investigation could not determine when the last time the hose was replaced. The airplane's current mechanic had worked on the airplane for 3 years and had not replaced the hose during that time. He added that the hoses did not look damaged or degraded during the inspections he performed. There was no entry in the logbook to indicate the hydraulic hoses had been replaced within the last 5 years or 1,000 hours.
Probable cause
Failure of the nose landing gear down pressure hose, which resulted in the main landing gear being unable to lock and collapse of the main landing gear during the landing roll.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA12LA299
- Event ID
- 20120424X25643
- Case number
- ERA12LA299
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: b75db75cc05cf7b05b87be0e9b016651586e90df7336fb554070d4d583b96fdd; retrieved 2026-09-15T17:52:24.006Z.