Extra 300SL | N330SL
November 8th, 2025 | Keystone Heights, Florida
Accident Location
- City: Keystone Heights
- State: Florida
- Latitude: 29.841389
- Longitude: -82.050556
- Airport ID: 42J
Aircraft Info
- N Number: N330SL
- Make: Extra
- Model: 300SL
- Aircraft Category: Aircraft Single Engine Land
- Amateur Built: No
Pilot Info
- PIC Name: Cillier, Warren Mark
- Gender: Male
- Pilot Age: 41
- Pilot Hours:
- Flight School: No
- Instructional Flight: No
- Pilot Certification: Private Pilot
- IFR Rating: No
- Pilot Error: Yes
- Pilot Medical: Basic Med
- Pilot Incapacitation: No
Analysis
- Date: November 8th, 2025
- Time: 10:40 AM Local Time
- Day / Night: Day
- VMC / IMC: VMC
- Phase Of Flight: Maneuvering
- Total People Onboard: 1
- PIC Fatality: 1
- PAX Fatalities: 0
- Ground Fatalities: 0
- Total Fatalities: 1
- NTSB No:
- NTSB Travel: Unknown
- AQP Classification: 22) AIRSHOW, U-FIT
Probable Cause
DTSB: The DTSB determines the Probable cause of this accident to be Pilot Error, in that the accident pilot did enter an intentional inverted flat spin from an altitude too low to effect a full recovery. The on board parachute was not useable from this altitude. The accident occurred during airshow aerobatic practice.
NTSB: NONE
Recommendation
DTSB: The DTSB recommends that all pilots of all aerobatic aircraft performing intentional aerobatics, practice up much higher and allow safer margins for recovery from these type maneuvers.
NTSB: NONE
DISCLAIMER: All data and Probable Cause listings are “Probable” only. They are based on opinion and educated speculation, and are for educational purposes only. They may contain incorrect information and are subject to change as new information becomes available.