WPR19LA221 · AutoGyro Cavalon
AutoGyro Cavalon · Accident: loss of control in flight during takeoff
Event
- NTSB case
- WPR19LA221
- 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
AutoGyro Cavalon
- Aircraft type
- Autogyro CAVALON
- Category
- Gyroplane
- 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
- N477AG
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From not recordedTo not recorded
- 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
- Takeoff
- 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 pilot of the gyroplane was practicing takeoffs and landings. On the accident takeoff attempt, the pilot initiated the takeoff roll with a rotor rpm less than that recommended by the manufacturer. When he saw that the speed of the gyroplane was higher than normal and the gyroplane still had not lifted off the runway, he applied aft control stick to initiate the takeoff, contrary to the published takeoff procedures in the owner’s manual. The gyroplane then immediately lifted off the runway and rolled to the left. The rotor contacted the left vertical stabilizer and the runway. An examination of the wreckage revealed no preaccident mechanical malfunctions or failures with the gyroplane that would have precluded normal operation. It is likely that the pilot’s decision to initiate the takeoff with low rotor rpm and his failure to follow the published takeoff procedure resulted in a loss of control.
Probable cause
The pilot’s failure to initiate the takeoff roll with inadequate rotor speed, and his failure to follow the published takeoff procedures, which resulted in a loss of control and impact with the ground.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR19LA221
- Event ID
- 20190815X34221
- Case number
- WPR19LA221
- 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: local date, investigation status. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 2019-08-15.
- API snapshot SHA-256: c8aebeb49c99a3656de6e7f41c8e2b5460f9ff6219b25f4d4701212b009da96a; retrieved 2026-09-16T09:45:38.655Z.