WPR23LA128 · Jones JAY D CASSUTT M 11
Jones JAY D CASSUTT M 11 · Accident: aircraft structural failure while maneuvering
From Marina Municipal Airport (OAR) to an unrecorded destination
Event
- NTSB case
- WPR23LA128
- 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
Jones JAY D CASSUTT M 11
- Aircraft type
- Jones Jay CASSUTT M 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
- N55XJ
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Marina Municipal Airport (OAR), Marina, CATo not recorded
- Aircraft age
- About 20 years (built 2003)
- 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
- Maneuvering · aerobatics
- 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
- Aircraft structural failure
- 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 oper/perf/capability
- Aircraft › Aircraft structures
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot was performing an aileron roll when the airplane suddenly entered an uncommanded high-g maneuver, and he lost control of the airplane. He was able to release his seat belt and parachute to the ground. The left wing and aileron separated from the airplane before impacting a muddy field. The mostly intact left aileron, attached torque tube, and both trailing edge ribs separated from the wing and the torque tube fractured from the bellcrank in the fuselage. The forward halves of the upper and lower flanges and the forward flange of the outboard trailing edge rib were separated cleanly from the wing consistent with an adhesive type failure at the interface between the carbon and adhesive. The aft halves of the upper and lower flanges of the outboard trailing edge rib were separated from the trailing edge skins with a cohesive type failure through the adhesive. The lower flange also had evidence of foam core material in the bond line. The available evidence suggests that the outboard trailing edge rib failed along the bond lines between the rib, rear spar, and trailing edge skins, which resulted in a loss of control when the left aileron separated from the wing and the left wing separated from the airplane.
Probable cause
A failure of the outboard trailing edge rib in the left wing, which resulted in a separation of the left aileron and a loss of control.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR23LA128
- Event ID
- 20230313106887
- Case number
- WPR23LA128
- 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, 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: 2d76e6722408f95b8e5cc8efc66e7f242f1731866c3ecdd88398bca5ab7aec3f; retrieved 2026-09-16T17:25:24.776Z.