# Accident 20190823016069A: Moriarty Marvin AVENTURA II, Minneola, FL, August 23, 2019

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 23, 2019, 11:15 local time
- Place: Minneola, FL
- Airport: Florida Flying Gators Ultralig
- Damage: Destroyed
- Phase of flight: Takeoff: Climb Out
- Operating rules: General operating rules (Part 91)
- Location: 28.6306° N, 81.8044° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=28.6306&lon=-81.8044&mi=10
- Aircraft: N9143M, a cancelled registration (https://openairdocs.org/deregistered/N9143M-2022-04-02) (OpenAirDocs)
- Registry model: Moriarty Marvin AVENTURA II (registry code 0561015, https://openairdocs.org/model/moriarty-marvin-aventura-ii) (OpenAirDocs)
- Registry engine: Bombardier ROTAX (ALL) (registry code 09050, https://openairdocs.org/engine/bombardier-rotax-all) (OpenAirDocs)
- Reported make and model: MORIARTY MARVIN AVENTURA II
- Reported engine: BOMBARDIER ROTAX (ALL)
- People aboard: 1
- Fatal injuries: 1
- Other injuries: 0
- Pilot certificates: Private pilot
- Pilot flight hours: 400 in this make and model
- NTSB investigation: [NTSB ERA19FA256](https://openairdocs.org/ntsb/ERA19FA256) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20190823016069A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

IAW THE NARRATIVE PROVIDED BY THE SON OF THE PILOT, HE STATED HE AND HIS FATHER PUT THE AIRPLANE TOGETHER AND WORKED AND FLEW WITH HIS FATHER OFTEN. HE STATED HE AND HIS FATHER INSTALLED AN AFTER-MARKET SUPERCHARGER ON THE AIRPLANE SEVERAL MONTHS BACK AND THE AIRPLANE HAS BEEN FLYING VERY GOOD SINCE THEN. ^PRIVACY DATA OMITTED^ STATED ABOUT TWO DAYS BEFORE THE ACCIDENT, HIS FATHER STATED THAT THE AIRPLANE HAS BEEN EXPERIENCING HIGHER THAN NORMAL FUEL CONSUMPTION GOING FROM THE NORMAL 4 GALLONS AN HOUR TO ABOUT 6 GALLONS AN HOUR. THE DAY BEFORE THE ACCIDENT FLIGHT, ^PRIVACY DATA OMITTED^ STATED THAT HE AND HIS FATHER REPLACED THE JETS IN THE CARBURETOR TO SMALLER JETS TO TRY AND IMPROVE THE FUEL CONSUMPTION. AFTER THEY REPLACED THE JETS, THEY STARTED THE ENGINE AND IT WAS RUNNING VERY ROUGH, COUGHING AND MISSING. THE DAY OF THE ACCIDENT HIS FATHER TOLD HIM HE FIXED THE AIRPLANE BY ADJUSTING THE TABS ON THE FLOAT BRACKET AND ALLOWING MORE FUEL TO ENTER THE CARBURETOR BOWL. THEY PERFORMED A RUN-UP OF THE ENGINE AND IT RAN NORMAL. ^PRIVACY DATA OMITTED^ SAID THE PLAN WAS FOR HIS FATHER TO FLY TO DELAND AIRPORT AND HE WOULD DRIVE THE TRUCK AND TRAILER THERE TO MEET HIM. ^PRIVACY DATA OMITTED^ WATCHED AS HIS FATHER STARTED HIS TAKEOFF ROLL ON RUNWAY 36. HE STATED THE TAKEOFF LOOKED NORMAL BUT NOTICED THE AIRPLANE WAS NOT CLIMBING LIKE IT HAS IN THE PAST. WHEN THE AIRPLANE REACHED ABOUT 300 FEET AGL, THE ENGINE STARTED TO SPUTTER AGAIN AND RUN ROUGH. HE STATED IT LOOKED LIKE HIS FATHER TRIED TO TURN BACK TO THE RUNWAY AND MADE A SHARP LEFT TURN. SHORTLY AFTER THE LEFT TURN, HE SAW THE AIRPLANE GO STRAIGHT DOWN TO THE GROUND.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ERA19FA256](https://openairdocs.org/ntsb/ERA19FA256), Aug 23, 2019: Moriarty Marvin Aventura II (N9143M), Minneola, FL, substantial damage, 1 fatal. Probable cause: The pilot’s improper modifications to the airplane’s engine, which resulted in the partial loss of engine power. Contributing to the outcome was the pilot's exceedance of the airplane’s critical…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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