CEN19IA234 · Mooney M20J
Mooney M20J and Mooney M20U · Incident: midair collision en route
Narrative check · The NTSB narrative appears to contradict this record's location. Values are shown as recorded, not corrected; compare with the narrative.
Event
- NTSB case
- CEN19IA234
- 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
- Incident
- 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
Aircraft 1 · Mooney M20J
- Aircraft type
- Mooney M20
- 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
- N9201A
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Dane County Regional Truax Field (KMSN), Madison, WITo Oshkosh, WI
- Aircraft age
- About 41 years (built 1978)
- 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
- En route · cruise
- 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
- Midair collision
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Minor
Aircraft 2 · Mooney M20U
- Aircraft type
- Mooney M20
- 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
- N197CV
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Dane County Regional Truax Field (KMSN), Madison, WITo Oshkosh, WI
- Aircraft age
- About 4 years (built 2015)
- 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
- En route · cruise
- 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
- Midair collision
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Minor
Cause areas
- Personnel issues › Psychological
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
Both pilots and their passengers were flying in formation as a part of a mass arrival. The airplanes were a two-ship element with the Mooney M20J as the lead and the Mooney M20U as the wing. They were to join up with the preceding two-ship element after departure. After takeoff, the pilots of both airplanes were maneuvering into position to the right of the lead airplane in the preceding element. The pilot of Mooney M20U reported that he encountered wake turbulence that forced him above Mooney M20J. The pilot of Mooney M20J reported that he saw Mooney M20U above and forward of his right wing and slowing. Both pilots immediately maneuvered in attempt to deconflict their airplanes before they rejoined the formation and continued the flight. Neither pilot reported feeling the collision and there were no anomalies with either airplane for the remainder of the flight and subsequent landing. After landing, the pilots discovered the damage to the airplanes. The Mooney M20J sustained minor damage to the right outboard wing leading edge and the Mooney M20U sustained minor damage to the rudder.
Probable cause
The failure of both pilots to remain clear of the other while flying in formation.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN19IA234
- Event ID
- 20190724X81016
- Case number
- CEN19IA234
- 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, coordinates. 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: 37a913f5fefd940847d7a4d2c44be96ae3c144df00e4c221612f22433b850e25; retrieved 2026-09-13T18:32:58.233Z.