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NTSB Report
September 6, 1992 · Texas Helicopter OH-13E/M74 · N38099
Chandler, AZ
Overview
Report Status
Probable Cause
Event Type
Accident
Date
September 6, 1992
Injury Outcomes
No injuries (1 uninjured)
Location
Chandler, AZ
Aircraft
Texas Helicopter OH-13E/M74
Tail Number
N38099
Operator
Flight Services
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX92LA378
AFTER RECEIVING FUEL AND RELOADING WITH A CHEMICAL HERBICIDE, THE HELICOPTER WAS DEPARTING A LANDING/LOADING PLATFORM MOUNTED ON A TRUCK, TO CONTINUE AGRICULTURAL SPRAY OPERATIONS. AS THE HELICOPTER LEFT THE PLATFORM, THE PILOT WAS UNABLE TO MAINTAIN ALTITUDE AND JETTISON THE CHEMICAL LOAD. THE HELICOPTER SETTLED INTO A COTTON FIELD AND ROLLED ONTO ITS LEFT SIDE. EXAMINATION OF WEIGHT AND BALANCE, AND PERFORMANCE CHARTS REVEALED THAT THE HELICOPTER SHOULD HAVE BEEN ABLE TO MAINTAIN FLIGHT. THE PILOT REPORTED THAT HIS RECOMMENDATION TO PREVENT THIS ACCIDENT WAS TO NOT OVERLOAD THE HELICOPTER.
NTSB Probable Cause
THE PILOT'S MISJUDGING THE PERFORMANCE AND WEIGHT AND BALANCE DATA OF THE HELICOPTER PRIOR TO DEPARTURE. CONTRIBUTING TO THE ACCIDENT WAS A FAILURE OF THE PILOT TO JETTISON THE CHEMICAL LOAD.
Full Narrative
AFTER RECEIVING FUEL AND RELOADING WITH A CHEMICAL HERBICIDE, THE HELICOPTER WAS DEPARTING A LANDING/LOADING PLATFORM MOUNTED ON A TRUCK, TO CONTINUE AGRICULTURAL SPRAY OPERATIONS. AS THE HELICOPTER LEFT THE PLATFORM, THE PILOT WAS UNABLE TO MAINTAIN ALTITUDE AND JETTISON THE CHEMICAL LOAD. THE HELICOPTER SETTLED INTO A COTTON FIELD AND ROLLED ONTO ITS LEFT SIDE. EXAMINATION OF WEIGHT AND BALANCE, AND PERFORMANCE CHARTS REVEALED THAT THE HELICOPTER SHOULD HAVE BEEN ABLE TO MAINTAIN FLIGHT. THE PILOT REPORTED THAT HIS RECOMMENDATION TO PREVENT THIS ACCIDENT WAS TO NOT OVERLOAD THE HELICOPTER.
Flight
Event TypeAccident
Event Time09:10 MST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftTexas Helicopter OH-13E/M74
Tail NumberN38099
Aircraft CategoryHeli
DamageSubstantial
OperatorFlight Services
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · VO-435-A1F · Reciprocating · 260
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 28 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility30 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO