WPR12LA422 · Hawker MK 11 SEA FURY
Hawker MK 11 SEA FURY · Accident: landing gear collapse
From Reno-Stead Airport (RTS) to Reno-Stead Airport (RTS)
Event
- NTSB case
- WPR12LA422
- 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
Hawker MK 11 SEA FURY
- Aircraft type
- Hawker MK-11
- 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
- N4434P
- Operator
- Matthew Jackson
- Onboard fatalities
- Unknown
- Route
- From Reno-Stead Airport (RTS), Reno, NVTo Reno-Stead Airport (RTS), Reno, NV
- 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
- Aircraft › Aircraft systems
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot reported that following an uneventful takeoff, the landing gear malfunctioned when he attempted to retract it. After several attempts, the landing gear retracted, and he performed his race course qualifying lap. Upon exiting the closed race course, he attempted to extend the landing gear. Following multiple attempts, the landing gear appeared to be down. The right main landing gear warning light was illuminated, and the pilot executed a precautionary landing. During the landing roll, the right main landing gear collapsed. Subsequently, the airplane exited the right side of the runway and came to rest upright. Examination of the airplane revealed that the landing gear rotary selector valve seal had failed, which allowed hydraulic pressure to bypass the landing gear. The bypass in hydraulic pressure would preclude the landing gear system from operating normally.
Probable cause
The collapse of the right main landing gear due to failure of the landing gear rotary selector valve seal.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR12LA422
- Event ID
- 20120918X20857
- Case number
- WPR12LA422
- 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: b075741ebc78becc3d77b94e684e9ab43f4b02efbd3d8056330aa8cee524c82c; retrieved 2026-09-15T19:53:39.277Z.