- Date
- July 20, 2002, 08:00 local (15:00 UTC)
- Place
- Knights Landing, CA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N6794KGrumman-Schweizer G-164B
- Weather
- Visual (VMC) · Day
- Status
- Completed · report September 29, 2004
- Report
- Approved by Office Director
- Parties
- Federal Aviation Administration
- Case key
- 55277
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 inadequate visual lookout, resulting in an in-flight collision with wires.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
The airplane collided with power lines while maneuvering during an aerial application flight. Thereafter, the airplane crashed into a field. The impacted line was 33 feet above ground level. The pilot indicated that he had observed some of the lines, but not the line with the lowest elevation.
Factual narrative
On July 20, 2002 about 0800 Pacific daylight time, a Grumman-Schweizer G-164B, N6794K, collided with power lines and crashed into a rice field approximately 8 miles northwest of Knights Landing, California. The accident occurred while the pilot was maneuvering during an aerial application flight. The airplane was substantially damaged, and the commercial pilot was not injured. The airplane was operated by Farm Air Flying Service, Inc., Verona, California, under the provisions of 14 CFR Part 137. Visual meteorological conditions prevailed. The flight originated from Verona approximately 0730.
According to responding sheriff officers and representatives from the Pacific Gas & Electric Company, the airplane came to rest upside down in a rice field after colliding with 12 KV power distribution lines. The elevation of the impacted upper line (conductor) was about 33 feet above ground level. About a 4/10-mile-long span of lines and five supporting poles were downed during the collision sequence.
The pilot reported in his completed "Aircraft Accident Report," that he had observed the power lines and attempted to fly beneath them. However, he did not notice the lowest elevation line that his airplane contacted.
Aircraft
- Registration
- N6794K
- Reported as
- Grumman-Schweizer G-164B
- Category
- Airplane
- Serial number
- 488B
- Airframe hours
- 11,648
- Engine
- Pratt & Whitney R-985-AN1, 600 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Registered owner
- Farm Air Flying Service, Inc.
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- 100 hour · July 17, 2002 · 10 hours before
- Departed
- 2Q0 · Verona, CA
- Destination
- 2Q0
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
- 42
- Injuries
- None
- Certificates
- Commercial, Flight instructor
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Without waivers/limitations
- Last flight review
- December 18, 2001
- Seat
- Single
- Flight hours
- 8,100 total · 4,500 in this make and model · 8,000 as pilot in command · 350 in the last 90 days · 125 in the last 30 days · 6 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 110° at 4 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 66 °F, dew point 57 °F
- Altimeter
- 29.81 inHg
- Observed at
- SMF, 15 nm away
Docket · 1
The files NTSB released with the investigation on July 26, 2004, on NTSB’s docket system: statements, records, photos and specialists’ reports. 275 KB in all.