Probable cause
The pilot's failure to see and avoid marked power lines during low-level flight over a lake.
NTSB analysis
According to the pilot, while on a cross country flight he decided to descend and overfly a lake. While maneuvering over the lake with the setting sun at low level, the right main landing gear struck a marked power line, about 70 feet above the lake's surface; the right landing gear separated and broke an engine mount on the airplane. The pilot immediately turned the airplane toward a nearby airport and performed a forced landing. The left main landing gear collapsed on landing and the firewall sustained substantial damage. The pilot reported no mechanical malfunctions or failures with the airframe or engine that would have precluded normal operation. A witness stated that the power lines were marked by orange balls, while the pilot stated that the balls were red and dark. When asked how the accident could have been prevented, the pilot stated that yellow or white balls would have been easier to see.
Text from the NTSB. Open the NTSB docket for ERA10CA476 for the full record.
Event
- Date
- Sep 12, 2010
- Type
- Accident
- Place
- Gainesville, Georgia
- Nearest airport
- Lee Gilmer Memorial Airport (GVL)
- Highest injury
- None
- Weather
- Visual (VMC)
- Light
- Day
Amateur-built RV-4
- N-number
- N311U
- Category
- Airplane
- Damage
- Substantial
- Operating rule
- Part 91 (general aviation)
- Purpose of flight
- Personal
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.