CEN20LA266 · Lancair ES-P
Lancair ES-P · Accident
From University of Oklahoma Westheimer Airport (OUN) to University of Oklahoma Westheimer Airport (OUN)
Event
- NTSB case
- CEN20LA266
- 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
Lancair ES-P
- Aircraft type
- Lancair ES-P
- 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
- N444TW
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From University of Oklahoma Westheimer Airport (OUN), Norman, OKTo University of Oklahoma Westheimer Airport (OUN), Norman, OK
- Aircraft age
- About 7 years (built 2013)
- 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
- Unknown
- 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
- Unknown or undetermined
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Cause areas
- Not determined › Not determined
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot departed on a local flight. According to radar data, the airplane headed south and climbed to 4,500 ft mean sea level (msl). After about 20 minutes, the airplane turned back to the north and began a 500 ft per minute descent. The airplane turned to the east and then to the southeast. The last radar return showed the airplane at 1,700 ft msl (about 700 ft above ground level), on a heading of 143°, and flying at 96 knots. The airplane continued to descend and turn and collided with a corn field on a heading of 45°.
The pilot had no recollection of the accident. Impact and fire damage precluded a functional examination of the airframe and flight controls. A postaccident examination of the engine revealed no anomalies. Investigators were unable to determine the cause of the accident with the available information.
Probable cause
The reason for this accident could not be determined based on the available information.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN20LA266
- Event ID
- 20200706X41245
- Case number
- CEN20LA266
- 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: f2c564775d7fe7f02bc8a4c9b34b8ae01cf185955f840de409106159e112af15; retrieved 2026-09-16T12:03:38.970Z.