- Date
- September 12, 2010, 16:23 local (20:23 UTC)
- Place
- Gainesville, GA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N311UGoodman Robert Bruce RV-4
- Defining event
- Enroute-cruise: Controlled flight into terr/obj (CFIT)
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 5, 2011
- Report
- Approved by Office Director
- NTSB office
- Eastern Region Aviation
- Parties
- FAA/FSDO
- FAA report
- 20100912046209A
- Case key
- 77272
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot's failure to see and avoid marked power lines during low-level flight over a lake.
Findings · 2
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
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.
Factual narrative
According to the pilot, while on a cross country flight, he descended and overflew a lake along his route of flight. Flying into the setting sun at low level over the lake, the right main landing gear struck a marked power line, about 70 feet above the lake's surface, which separated the right landing gear and broke an engine mount on the airplane. The pilot turned "immediately" for a nearby airport and completed the forced landing which collapsed the left main landing gear and damaged the firewall. The pilot reported there were no mechanical anomalies with the airplane. 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."
Aircraft
- Registration
- N311U
- Reported as
- Goodman Robert Bruce RV-4
- Category
- Airplane, amateur-built
- Serial number
- 2362
- Airframe hours
- 1,410
- Engine
- Ama/Expr UNKNOWN ENG, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Condition · September 13, 2009
- Departed
- INT · Winston Salem, NC
- Destination
- CTJ · Carrollton, GA
- Airport
- GVL · Lee Gilmer Memorial Airport, runway 23, 5,500 × 100 ft, asphalt
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 65
- Injuries
- None
- Certificate
- Commercial
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, With waivers/limitations
- Last flight review
- June 13, 2009
- Seat
- Front
- Flight hours
- 5,022 total · 1,410 in this make and model · 50 in the last 90 days · 15 in the last 30 days · 3 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 340° at 9 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 84 °F, dew point 55 °F
- Altimeter
- 30.02 inHg
- Observed at
- GVL
Docket · 6
The files NTSB released with the investigation on October 18, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.0 MB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.