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NTSB Report
February 18, 2014 · Bell 47G 5A 5A · N715BH
Greenfield, CA
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
February 18, 2014
Injury Outcomes
No injuries (1 uninjured)
Location
Greenfield, CA
Aircraft
Bell 47G 5A 5A (1973)
Tail Number
N715BH
Operator
Wilbur-Ellis
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR14CA115
During the 2 hours leading up to the accident, the pilot of the agriculture and pest control category helicopter had sprayed about 40 acres of crops, having refueled once. He stated that during the last pass of his current field he misjudged the distance between the main rotor blades and a power pole. The main rotor blades struck the pole, and the pilot performed a forced landing into the field. During the landing, the helicopter rolled over, sustaining substantial damage to the firewall, tailboom, and cabin structure. The pilot reported no preimpact mechanical malfunctions or failures with the airframe or engine that would have precluded normal operation, and further stated that the accident could have been avoided if he had flown over the pole rather than attempting to fly around it.
NTSB Probable Cause
The pilot's failure to maintain clearance from a power pole during low-altitude maneuvering flight.
Full Narrative
During the 2 hours leading up to the accident, the pilot of the agriculture and pest control category helicopter had sprayed about 40 acres of crops, having refueled once. He stated that during the last pass of his current field he misjudged the distance between the main rotor blades and a power pole. The main rotor blades struck the pole, and the pilot performed a forced landing into the field. During the landing, the helicopter rolled over, sustaining substantial damage to the firewall, tailboom, and cabin structure. The pilot reported no preimpact mechanical malfunctions or failures with the airframe or engine that would have precluded normal operation, and further stated that the accident could have been avoided if he had flown over the pole rather than attempting to fly around it.
Flight
Event TypeAccident
Event Time08:30 PST
Nearest AirportKINGCITY (4nm NW)
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBell 47G 5A 5A
Tail NumberN715BH
Aircraft CategoryHeli
DamageSubstantial
OperatorWilbur-Ellis
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · VO-435-B1A · Reciprocating · 265
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 29 · Second Class · None
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point46 / 41 C
Altimeter30.20 inHg
Observation Time16:53
Weather SourceWFAC