CEN15LA437 · Capella Aircraft Corporation ( FW2TDXLS
Capella Aircraft Corporation ( FW2TDXLS · Accident: loss of control in flight while maneuvering
From Bartlesville Municipal Airport (KBVO) to Bartlesville Municipal Airport (KBVO)
Event
- NTSB case
- CEN15LA437
- 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
Capella Aircraft Corporation ( FW2TDXLS
- Aircraft type
- Capella FW2
- 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
- N903AB
- Operator
- Joseph Sigler
- Onboard fatalities
- Unknown
- Route
- From Bartlesville Municipal Airport (KBVO), Bartlesville, OKTo Bartlesville Municipal Airport (KBVO), Bartlesville, OK
- Aircraft age
- About 7 years (built 2008)
- 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
- 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
- Loss of control in flight
- 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
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The private pilot was conducting a personal flight in the experimental airplane. He reported that, during climbout, the right wing kept "coming up" and that the airplane was banking left. The pilot attempted to level the airplane but was unsuccessful. The airplane turned 360 degrees, and the airplane's nose started to drop. The pilot reduced the engine power and continued trying to level the airplane. The airplane subsequently impacted the ground on the left wing and landing gear and came to rest on its nose. An examination of the airplane revealed no mechanical anomalies that would have prevented normal operation.
Probable cause
The pilot’s failure to maintain airplane control after takeoff.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN15LA437
- Event ID
- 20151005X65121
- Case number
- CEN15LA437
- 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: b2788e8c552fc4d641f70d7264a12e45c5623ad1dfd66129d69ed70924177462; retrieved 2026-09-16T02:51:23.833Z.