WPR12LA047 · Cessna 310I
Cessna 310I · Accident: landing gear collapse
From Chandler Municipal Airport (CHD) to Sedona Airport (SEZ)
Event
- NTSB case
- WPR12LA047
- 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 310I
- Aircraft type
- Cessna 310
- 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
- N8059M
- Operator
- Chappell Hubert H
- Onboard fatalities
- Unknown
- Route
- From Chandler Municipal Airport (CHD), Chandler, AZTo Sedona Airport (SEZ), Sedona, AZ
- 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
- Landing · landing roll
- 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
- Not determined › Not determined
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot reported that he entered the traffic pattern and completed the before landing checklist, including lowering the flaps and landing gear. He further reported that there were no anomalies, and the landing was uneventful until the right main landing gear collapsed during the landing roll. The airplane departed the right side of the runway, the nose and left main landing gear collapsed, and the airplane came to rest on its belly. Postaccident examination revealed impact damage to the inboard right main landing gear door that was consistent with the door being partially open when the damage was sustained. Because the inboard gear doors are closed when the landing gear is in the down position, the partially open position of the gear door indicates that the right main landing gear was not down and locked. No evidence was found of preimpact broken or disconnected parts in the right main landing gear extension/retraction mechanism. Impact damage to the landing gear precluded performance of a landing gear extension/retraction test, and the reason for the right main landing gear collapse was not determined.
Probable cause
The collapse of the right main landing gear after landing for a reason that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation, and postaccident testing could not be performed due to damage.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR12LA047
- Event ID
- 20111125X60955
- Case number
- WPR12LA047
- 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: 227e06737a427967d57bf2647ab801ac8cb598eec857ba4c25b0bdf77d9d1bbc; retrieved 2026-09-15T16:57:44.185Z.