On October 9, 1989, a Piper PA-28 (registration N6340R) was involved in an aviation accident near Delavan, MN. Investigators recorded the probable cause as: The pilot's failure to maintain adequate clearance from a powerline during a low-level maneuver. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 4 related events involving the same aircraft type or operator are linked below.
An aircraft observed flying below treetop level initiated a pull-up but struck a powerline at approximately 24 to 30 feet above ground level, resulting in a crash in a nearby field with no preimpact mechanical issues found.
What happened
The aircraft was observed conducting a low pass maneuver that took it below treetop level. Moments before the accident, the pilot initiated a pull-up to regain altitude. During this ascent, the aircraft struck a powerline at an altitude of approximately 24 to 30 feet above ground level (AGL). The impact caused the powerline to stretch and then fail. Following the initial contact with the wires, the aircraft continued forward and crashed in a field located 733 feet from the point where it first hit the powerline.
The investigation
Examination of the wreckage and available evidence revealed no preimpact mechanical problems. The sequence of events was determined by visual observation of the flight path leading up to the impact with the overhead obstruction.
Probable cause
The pilot's failure to maintain adequate clearance from a powerline during a low-level maneuver.
What happened in the 9 Oct 1989 Piper PA-28 accident near Delavan, MN?
An aircraft observed flying below treetop level initiated a pull-up but struck a powerline at approximately 24 to 30 feet above ground level, resulting in a crash in a nearby field with no preimpact mechanical issues found.
What aircraft was involved and where did it happen?
The accident on 9 Oct 1989 involved a Piper PA-28, registration N6340R, at Delavan, MN.
What was the probable cause of the accident?
The pilot's failure to maintain adequate clearance from a powerline during a low-level maneuver.
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