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NTSB Report
July 15, 2008 · Bell 47G-3B-1 · N1390X
Shafter, CA
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
July 15, 2008
Injury Outcomes
No injuries (1 uninjured)
Location
Shafter, CA
Aircraft
Bell 47G-3B-1
Tail Number
N1390X
Operator
Slykerman Ag Aviation
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX08CA229
The pilot reported that a few minutes after taking off for a nighttime agricultural spray flight over an alfalfa field, the ground illumination lights in his helicopter went out. At the time, he was descending and maneuvering close to the ground on a spray run. The pilot reported that he did not see the field before impacting it with the spray boom. The helicopter rolled over and was substantially damaged.
NTSB Probable Cause
The pilot's failure to maintain adequate altitude while maneuvering. Contributing factors were the failure of the helicopter's lights during the night flight and the effect of that failure on the pilot's visual perception.
Full Narrative
The pilot reported that a few minutes after taking off for a nighttime agricultural spray flight over an alfalfa field, the ground illumination lights in his helicopter went out. At the time, he was descending and maneuvering close to the ground. The pilot reported that he did not see the field before impacting it with the spray boom. The helicopter rolled over and was substantially damaged.
Flight
Event TypeAccident
Event Time22:30 PDT
Nearest Airport0nm
Flight Plan FiledNone
Aircraft FireNo
Aircraft
AircraftBell 47G-3B-1
Tail NumberN1390X
Aircraft CategoryHeli
DamageSubstantial
OperatorSlykerman Ag Aviation
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · TVO-435 · Reciprocating
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 43 · Second Class
Conditions
ConditionsVMC
LightDark Night
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO