CHI99FA311 · Walker BREEZY
Walker BREEZY · Accident: loss of control in flight during initial climb
From Southern Wisconsin Regional Airport (JVL) to Beloit Airport (44C)
Event
- NTSB case
- CHI99FA311
- 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
- 1 · all aircraft and ground
- Ground fatalities
- 0
- 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
Walker BREEZY
- Aircraft type
- Walker BREEZY
- 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
- N12BZ
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Southern Wisconsin Regional Airport (JVL)To Beloit Airport (44C), Beloit, WI
- Aircraft age
- Not recorded
- 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
- Initial climb
- First occurrenceThe 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
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Stall/spin
- 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
- Pilot in command › Stall/spin, inadvertent
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The airplane was cleared for takeoff on runway 31 at the Rock County Airport, Janesville, Wisconsin. The manager of the Air Traffic Control Tower said he watched the airplane get airborne just prior to taxiway 'alpha', approximately 2,000 feet down the runway. The airplane climbed out at a 45 degree nose-high pitch attitude. Approximately 100 feet over the intersection of runway 22 and runway 31, the airplane began a left turn. The airplane then turned to the right, 'fishtailed', and 'porpoised' several times. The airplane's nose remained at a high pitch angle the whole time. The airplane began another right turn, but then nosed straight down, hitting the ground. A witness on the ground said that the airplane 'got off in a very short distance, in a ridiculously steep pitch angle.' The airplane started a left turn in a nose-high attitude. The airplane settled, the nose went high, and then the airplane 'fell off to the right into a right-hand spin.' Examination of the airplane revealed no anomalies.
Probable cause
the inadvertent stall. A factor relating to this accident was the pilot's excessive climb rate.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CHI99FA311
- Event ID
- 20001212X19430
- Case number
- CHI99FA311
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
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: 109a795b847bc31a50a7e1ff3a74cbcea295eaa210b2fb5f89e9a89afd64a204; retrieved 2026-09-20T21:51:24.357Z.