WPR22LA124 · Cessna 310R
Cessna 310R · Accident: landing gear collapse while taxiing
From an unrecorded airport to Ruby Airport (PARY)
Event
- NTSB case
- WPR22LA124
- 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
- Event fatalities
- Unknown
- 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 310R
- 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
- N3UR
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From not recordedTo Ruby Airport (PARY), Ruby, AK
- Aircraft age
- About 48 years (built 1974)
- 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
- Taxi · into takeoff position
- 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
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The pilot back-taxied the airplane for departure and then began a 180° left turn to align the airplane with the runway centerline when the right main landing gear collapsed. The gear collapse resulted in substantial damage to the right elevator. A postaccident examination of the airplane revealed fractures to the bellcrank lower arm fork, bellcrank, pivot bolt, and trunnion bellcrank lug at the right main landing gear, which all displayed signatures consistent with overstress. The airplane had recently been repaired following another right main landing gear failure. During the repair the accident pilot, who was also the mechanic, adjusted the down lock tension as required by the maintenance manual and returned the airplane to service after he determined that the tension was within limits. A statement from the airplane manufacturer suggested that the failure may have been the result of an improper down lock tension adjustment. However, there was insufficient evidence in the investigation to show whether the pilot performed the adjustment incorrectly, thus the cause of the landing gear failure is undetermined.
Probable cause
A failure of the right main landing gear bellcrank lower arm fork, bellcrank, pivot bolt, and trunnion bellcrank lug for undetermined reasons.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR22LA124
- Event ID
- 20220316104790
- Case number
- WPR22LA124
- 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, cause areas. 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: 84a3b225461cc8de3cf8d65e61fdb62f63855040866e6f1c8b188582db373cbc; retrieved 2026-09-16T15:02:45.018Z.