CEN17LA148 · Cessna T210M M
Cessna T210M M · Accident: landing gear collapse
From Moorhead Municipal Airport (JKJ) to Detroit Lakes Airport (DTL)
Event
- NTSB case
- CEN17LA148
- 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 T210M M
- 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
- N1215M
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Moorhead Municipal Airport (JKJ), Moorhead, MNTo Detroit Lakes Airport (DTL), Detroit Lakes, MN
- Aircraft age
- About 40 years (built 1977)
- 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
- Landing · flare/touchdown
- 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
- Landing gear collapse
- 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
- Not determined › Not determined
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The commercial pilot reported that, before the accident flight, the airplane had been experiencing intermittent landing gear problems and that the purpose of the flight was to bring the airplane to a maintenance facility to examine the landing gear system. He added that, before the flight, the landing gear circuit breaker was pulled out "in order to keep the gear in the down position and eliminate the gear warning horn" for the flight. While landing, the pilot noticed that the left wing slightly dropped after touchdown, and the pilot corrected with aileron to maintain the runway centerline. Shortly thereafter, the pilot could feel the right main landing gear (MLG) slowly collapse. The pilot was unable to maintain the airplane on the runway centerline, and the airplane exited the runway surface. The airplane came to rest upright with the right MLG collapsed, and the right horizontal stabilizer was bent.
During a postaccident examination, the landing gear were retracted and extended multiple times. Each gear retraction was normal; however, the gear extension cycles resulted in the left MLG and nose landing gear extending and locking, and the right MLG extending with no movement from the downlock actuator. The actuator was removed for further examination, and it was difficult to move. After removal, the actuator released, and the internal spring mechanism freely moved the actuator. The actuator was disassembled with no internal problems noted.
According to the Pilot's Operating Handbook, Section 3, "Emergency Procedures, Landing Gear Malfunction Procedures," the landing gear pump circuit breaker was to be positioned to the "in" position for all landing gear malfunction scenarios.
Probable cause
The malfunction of the right main landing gear actuator for reasons that could not be determined because postaccident examination revealed no mechanical anomalies that would have precluded normal operation. Contributing to the accident was the improper decision to disengage the landing gear system circuit breaker before the flight, which was contrary to the manufacturer-recommended procedures.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN17LA148
- Event ID
- 20170410X92111
- Case number
- CEN17LA148
- 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, coordinates. 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: 505cee03750e1b67fda0bcaba1e6821f825c950cafdb9655a03ec3f6269a9d16; retrieved 2026-09-16T05:09:31.132Z.