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NTSB Report
August 10, 2009 · Grumman Acft Eng Cor-Schweizer G-164A · N4598
Harlan, IA
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
August 10, 2009
Injury Outcomes
No injuries (1 uninjured)
Location
Harlan, IA
Aircraft
Grumman Acft Eng Cor-Schweizer G-164A
Tail Number
N4598
Operator
Paulsen Ag Spraying
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CEN09CA516
The pilot reported that the airplane would not climb out of ground effect during takeoff. The airplane settled into a corn field located off the end of the 3,100-foot-long asphalt runway. The left landing gear collapsed and the airplane nosed over resulting in substantial damage to the wings. The maximum certified gross weight of the airplane was 4,500 pounds with a basic empty weight of 3,093.8 pounds. The airplane was loaded with 80 gallons of fuel (480 pounds) and 170 gallons (1,419.5 pounds) of water/chemical mix. The pilot's weight was approximately 185 pounds. The airplane was approximately 678.3 pounds over the maximum gross weight at the time of the takeoff.
NTSB Probable Cause
The pilot's failure to perform accurate weight and balance calculations which resulted in exceeding the maximum takeoff weight and the airplane's climb capability.
Full Narrative
The pilot reported the airplane would not climb out of ground effect during takeoff. The airplane settled into a corn field located off the end of the 3,100 foot long asphalt runway. The left landing gear collapsed and the airplane nosed over resulting in substantial damage to the wings. The maximum certified gross weight of the airplane was 4,500 pounds with a basic empty weight of 3,093.8 pounds. The airplane was loaded with 80 gallons of fuel (480 pounds) and 170 gallons (1,419.5 pounds) of water/chemical mix. The pilot's weight was approximately 185 pounds. The airplane was approximately 678.3 pounds over the maximum gross weight at the time of the takeoff.
Flight
Event TypeAccident
Event Time10:35 CDT
Nearest AirportHarlan Municipal Airport (0nm)
Runway33
Runway Length4100 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft
AircraftGrumman Acft Eng Cor-Schweizer G-164A
Tail NumberN4598
Aircraft CategoryAir
DamageSubstantial
OperatorPaulsen Ag Spraying
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R1340 SERIES · Reciprocating · 600
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 51 · Second Class · None
Conditions
ConditionsVMC
LightDaylight
Wind300° @ 8 kt
Visibility10 sm
CeilingNone
Altimeter30.05 inHg
Observation Time15:52
Weather SourceWFAC