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NTSB Report
May 23, 1990 · Grumman G-164A · N913X
Hunlock Creek, PA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
May 23, 1990
Injury Outcomes
1 injury (1 fatality)
Location
Hunlock Creek, PA
Aircraft
Grumman G-164A
Tail Number
N913X
Operator
Aero Crop Services
Injuries
Fatal
Aircraft Damage
Substantial
NTSB Number
NYC90DHA01
WITNESSES REPORTED THAT THEY OBSERVED THE AIRCRAFT AS IT FLEW UP THE RIVER, AND WATCHED IT AGAIN AS IT RETURNED DOWN THE RIVER. THE WITNESSES GENERALLY AGREED THAT THEY AIRCRAFT WAS FLYING LOW OVER THE RIVER AND IT STRUCK THE POWER LINES THAT CROSSED THE RIVER. THE AIRCRAFT WAS OBSERVED TO 'SWING SIDE TO SIDE', THEN IT ROLLED OVER AND ENTERED THE RIVER AT A STEEP ANGLE. SEVERAL WITNESSES REPORTED THAT THEY SAW A BLUE FLASH/FLASH OF ELECTRICITY WHEN THE AIRCRAFT STRUCK THE POWER LINES. THE AIRCRAFT WAS BEING OPERATED FOR AERIAL APPLICATION OF A GYPSY MOTH INSECTICIDE.
NTSB Probable Cause
THE PILOT'S FAILURE TO MAINTAIN ADEQUATE CLEARANCE FROM OBTACLES, AND HIS FAILURE TO SEE AND AVOID THE ELECTRICAL TRANSMISSION LINE.
Full Narrative
WITNESSES REPORTED THAT THEY OBSERVED THE AIRCRAFT AS IT FLEW UP THE RIVER, AND WATCHED IT AGAIN AS IT RETURNED DOWN THE RIVER. THE WITNESSES GENERALLY AGREED THAT THEY AIRCRAFT WAS FLYING LOW OVER THE RIVER AND IT STRUCK THE POWER LINES THAT CROSSED THE RIVER. THE AIRCRAFT WAS OBSERVED TO 'SWING SIDE TO SIDE', THEN IT ROLLED OVER AND ENTERED THE RIVER AT A STEEP ANGLE. SEVERAL WITNESSES REPORTED THAT THEY SAW A BLUE FLASH/FLASH OF ELECTRICITY WHEN THE AIRCRAFT STRUCK THE POWER LINES. THE AIRCRAFT WAS BEING OPERATED FOR AERIAL APPLICATION OF A GYPSY MOTH INSECTICIDE.
Flight
Event TypeAccident
Event Time10:43 EDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftGrumman G-164A
Tail NumberN913X
Aircraft CategoryAir
DamageSubstantial
OperatorAero Crop Services
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R1340 AN1 · Reciprocating · 600
Seats1
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 39 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind260° @ 5 kt
Visibility20 sm
CeilingBroken clouds 7500 ft
Temperature / Dew Point57 / 43 C
Altimeter29.00 inHg
Observation Time13:52
Weather SourceWFAC