NTSB Identification: CHI86FER16.
The docket is stored on NTSB microfiche number 33288.
Accident occurred Monday, August 04, 1986 in ARGYLE, MN
Probable Cause Approval Date: 04/25/1988
Aircraft: AERO COMMANDER CALLAIR A9B, registration: N7617V
Injuries: 1 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

WHILE SETTING UP FOR A SWATH RUN THE PILOT STRUCK THE GROUND IN A WINGS LEVEL DESCENT. HE STATED THAT A 'WHIRLWIND' OR 'DOWNDRAFT' PREVENTED HIM FROM PULLING UP IN TIME TO PRE-VENT IMPACT WITH THE GROUND.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

PULL-UP..DELAYED..PILOT IN COMMAND


Contributing Factors

WEATHER CONDITION..DOWNDRAFT

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