WPR14LA105 · Piper PA 23-250
Piper PA 23-250 · Accident: landing gear collapse
From Hollywood Burbank/Bob Hope Airport (BUR) to Camarillo International Airport (CMA)
Event
- NTSB case
- WPR14LA105
- 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
Piper PA 23-250
- Aircraft type
- Piper PA-23
- 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
- N5977Y
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Hollywood Burbank/Bob Hope Airport (BUR), Burbank, CATo Camarillo International Airport (CMA), Camarillo, CA
- Aircraft age
- About 48 years (built 1966)
- 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
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot reported that he was performing touch-and-go landings and that, during the second landing, the right wing contacted the ground. The airplane then came to a stop on the runway. Postaccident examinations revealed that the right main gear landing (MLG) downlock was not in the locked position and that the right MLG had collapsed during landing. During the teardown of the hydraulic powerpack, a damaged O-ring was found on the gear selector shaft. The damaged O-ring did not allow the hydraulic fluid to build pressure and the downlock to hold, which prevented the downlock from locking the right MLG in the extended position.
Probable cause
The inadequate hydraulic pressure due to a damaged O-ring in the hydraulic powerpack, which prevented the right main landing gear (MLG) downlock from locking in the extended positon and allowed the right MLG to collapse during landing.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR14LA105
- Event ID
- 20140128X90012
- Case number
- WPR14LA105
- 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: d44ced824785180e8d1f906b09e3739728ae7cb3c9a7baa29373d9b5735b4ae2; retrieved 2026-09-15T23:17:16.231Z.