Probable cause
The builder’s failure to set adequate propeller pitch during propeller installation.
NTSB analysis
The pilot was making the first of a series of test flights for the new airplane. After engine run-ups and a high speed taxi run, the first takeoff was attempted. The airplane became airborne after a takeoff roll of 1,000 feet. At 30 feet AGL, the airplane would not climb higher or accelerate above 50 knots. Insufficient runway remained to land and the airplane impacted trees in a fully-stalled condition. The pilot reported there was no mechanical malfunction and the ground adjustable propeller was not set to allow the airplane to accelerate.
Text from the NTSB. Open the NTSB docket for ERA09CA040 for the full record.
Event
- Date
- Nov 2, 2008
- Type
- Accident
- Place
- Thomasville, North Carolina
- Nearest airport
- Hiatt Airport (N97)
- Highest injury
- Minor
- Minor injuries
- 1
- Weather
- Visual (VMC)
- Light
- Day
Amateur-built MONG BIWIN
- N-number
- N318CF
- Category
- Airplane
- 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.