Probable cause
The pilot’s excessive application of aft stick during takeoff, which resulted in an aerodynamic stall. Contributing to this accident was the pilot’s inexperience in the airplane.
NTSB analysis
According to the pilot in the experimental amateur-built airplane, he was conducting a flight test. During the takeoff roll, he applied "too much aft stick," and the airplane entered an unintentional steep climb at a low airspeed. The airplane rolled left about 30°, he corrected to the right, and the airplane's nose dropped. The pilot further reported that he may have reduced the throttle and overcorrected to the right. The airplane stalled and impacted the ground.
The airplane sustained substantial damage to the right wing.
The pilot reported that this was his second flight in the accident airplane.
The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Text from the NTSB. Open the NTSB docket for GAA18CA083 for the full record.
Event
- Date
- Dec 9, 2017
- Type
- Accident
- Place
- Franklin, Pennsylvania
- Nearest airport
- Venango Rgnl (FKL)
- Highest injury
- None
- Weather
- Visual (VMC)
- Light
- Day
Amateur-built ZENITH CH750
- N-number
- N750AD
- Category
- Airplane
- Year built
- 2017
- Damage
- Substantial
- Operating rule
- Part 91 (general aviation)
- Purpose of flight
- Flight test
From the NTSB aviation accident database: N-registered aircraft, events since 2008, data through Oct 28, 2026. The file is published monthly, so the latest weeks are incomplete and recent records can change. The official source is the NTSB aviation investigation search. CheckAero is independent and not affiliated with the NTSB.