WPR22LA226 · Cessna TR182
Cessna TR182 · Accident: landing gear collapse
From San Carlos Airport (SQL) to an unrecorded destination
Event
- NTSB case
- WPR22LA226
- 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 TR182
- Aircraft type
- Cessna 182
- 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
- N738JZ
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From San Carlos Airport (SQL), San Carlos, CATo not recorded
- Aircraft age
- About 43 years (built 1979)
- 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
- 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
According to the pilot, the landing gear did not extend while on approach to a tower-controlled airport. The pilot attempted to manually extended the landing gear and made a low pass over the airport. The tower controllers described that the nose gear was down, and the main landing gear was not fully extended. The pilot declared an emergency and landed on the runway with the landing gear partially retracted. Postaccident examination of the landing gear hydraulic system revealed a leak traced to the right main landing gear actuator O-ring pressure line. The actuator pressure-side O-ring was replaced, the actuator was reinstalled, and the hydraulic system maintained hydraulic pressure with no additional anomalies. According to the airframe and powerplant mechanic, the actuator O-ring showed signs of deterioration. Evidence supports that the deteriorated actuator O-ring resulted in a failure of the landing gear hydraulic system, specifically, the right main landing gear.
Probable cause
A failure of the right main landing gear actuator pressure line O-ring, which resulted in a gear-up landing on the runway.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR22LA226
- Event ID
- 20220624105344
- Case number
- WPR22LA226
- 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: local date, investigation status, cause areas. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 2022-06-24.
- API snapshot SHA-256: 4d704a98609ee921a34395f7cb593206df607a3a2b65e0c7121230129778b740; retrieved 2026-09-16T15:22:50.354Z.