ERA11LA228 · Hrosik Gene AVENTURA II
Hrosik Gene AVENTURA II · Accident: aerodynamic stall/spin during initial climb
From Thunderbird Air Park (2FA5) to Lakeland Linder International Airport (LAL)
Event
- NTSB case
- ERA11LA228
- 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
- Instrument Meteorological Cond
Hrosik Gene AVENTURA II
- Aircraft type
- Hrosik Gene AVENTURA
- 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
- N5842
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Thunderbird Air Park (2FA5), Crescent City, FLTo Lakeland Linder International Airport (LAL), Lakeland, FL
- 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
- 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
- Aerodynamic 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
- Substantial
Cause areas
- Aircraft › Aircraft oper/perf/capability
- Personnel issues › Action/decision
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The pilot stated that he conducted the preflight, engine start, taxi, and takeoff, with no anomalies noted. The pilot described a full-power takeoff at 5,800 rpm and a rotation speed of 48 mph, and then he lowered the nose of the airplane to climb out at 60 mph. As the airplane reached treetop height, the left wing dipped due to turbulence over the trees, and the pilot perceived a loss of engine power. The pilot said he again lowered the nose to gain airspeed, but the airplane nosed over and struck trees, the ground, and a fence. A postaccident examination of the airplane revealed no pre-impact mechanical anomalies. There was no checklist for the airplane, no placarded V-speeds in the cockpit, and no color-coded airspeed range markings on the airspeed indicator. According to the airplane kit’s manufacturer, the airplane’s rotation speed was 60 mph and the standard climb speed was 65 mph. The stall speed for the airplane was approximately 44 mph with the flaps retracted, depending on the airplane’s weight and the builders' modifications.
Probable cause
The pilot's failure to maintain adequate airspeed during climb after takeoff, resulting in an aerodynamic stall.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA11LA228
- Event ID
- 20110407X64319
- Case number
- ERA11LA228
- 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: 67ec43b48aa88bdb1a429bb1a4095ac9660e3fbef4c0be2b67089ecd706870bf; retrieved 2026-09-15T16:01:21.999Z.