No fatalities

10 Aug 2009: GRUMMAN ACFT ENG COR-SCHWEIZER G-164A — Paulsen Ag Spraying — Harlan, IA

Harlan, IA, United States

On 10 Aug 2009, a GRUMMAN ACFT ENG COR-SCHWEIZER G-164A operated by Paulsen Ag Spraying was involved in an aviation accident near Harlan, IA. No fatalities were reported. Investigators recorded the probable cause as: 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. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

During takeoff, an airplane would not climb out of ground effect and settled into a cornfield. The left landing gear collapsed and the airplane nosed over, causing substantial wing damage. The aircraft was 678.3 pounds over its maximum gross weight.

Accident Details

The pilot reported that during takeoff, the airplane would not climb out of ground effect. After departing the runway, 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.

Weight and Loading

The airplane's maximum certified gross weight was 4,500 pounds. Its basic empty weight was 3,093.8 pounds. At the time of the accident, the airplane was loaded with 80 gallons of fuel (480 pounds) and 170 gallons of a water/chemical mix (1,419.5 pounds). The pilot's weight was approximately 185 pounds. Based on these figures, the airplane was approximately 678.3 pounds over the maximum gross weight at the time of the takeoff.

Damage

The substantial damage was limited to the wings. The left landing gear collapsed, and the airplane nosed over during the event.

Contributing factors

Causes

PilotCapability exceeded

Other contributing factors

Contributed to outcome