- Date
- September 13, 2003, 08:30 local (15:30 UTC)
- Place
- Greenfield, CA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N7060JBell 47G-5
- Weather
- Visual (VMC) · Day
- Status
- Completed · report February 5, 2004
- Report
- Approved by Office Director
- Parties
- Federal Aviation Administration
- FAA report
- 20030913022749A
- Case key
- 57933
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 maintain clearance with the wires due to an inadequate visual lookout.
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 helicopter collided with power lines during an aerial application. As the pilot was lining up the helicopter in the corner of the lot, the helicopter descended into a wire. The wire wrapped around the mast and control linkages and the helicopter began pitching in an unusual manner. He attempted to level off; however, the controls were unresponsive and the helicopter collided with the ground.
Factual narrative
On September 13, 2003, about 0830 Pacific daylight time, a Bell 47G-5 restricted category helicopter, N7060J, collided with power lines during an aerial application near Greenfield, California. SoilServ, Inc., was operating the helicopter under the provisions of 14 CFR Part 137. The commercial pilot, the sole occupant, was not injured; the helicopter sustained substantial damage. Visual meteorological conditions prevailed and no flight plan had been filed. The flight departed from the local area about 0823. The primary wreckage was at 36 degrees 19.726 minutes north latitude and 121 degrees 13.279 minutes west longitude.
The pilot reported in a written statement that he was en route to the first field. As he was lining up the helicopter in the corner of the lot, the helicopter descended into a wire that was located outside the boundaries of the field. The helicopter began pitching in an unusual manner. After attempting to level off, he realized the controls were unresponsive and the helicopter collided with the ground. A later inspection by the pilot revealed that the wire had wrapped around the mast and control linkages.
Aircraft
- Registration
- N7060J
- Reported as
- Bell 47G-5
- Category
- Helicopter
- Serial number
- 25017
- Engine
- Lycoming VO-435, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Operator
- Soilserv Inc
- Registered owner
- Soilserv Inc
- Airworthiness certificate
- Special, Restricted (Special)
- Departed
- Greenfield, CA
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
- Certificates
- Commercial, Private
- Airplane ratings
- Single-engine land
- Medical
- Class 2
- Flight hours
- 6,481 total · 3,600 in this make and model
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 0° at 0 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 73 °F, dew point 55 °F
- Altimeter
- 29.81 inHg
- Observed at
- SNS
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N7060J · 2
Matched to the same aircraft by N-number and date.