No fatalities

River Crossing Accident Involving Unmarked Utility Wires

Knoxville, TN, United States

On October 11, 2016, a BELLANCA 8KCAB was involved in an aviation accident near Knoxville, TN. No fatalities were reported. Investigators recorded the probable cause as: The pilot's intentional low-altitude operation, which resulted in his failure to maintain clearance from unmarked utility wires. This summary draws on records from NTSB; 12 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards

An aircraft struck two unmarked utility wires while flying along a river shortly after departure. The impact caused the plane to crash into the water, resulting in substantial airframe damage and minor injuries to the pilot and passenger.

Incident Overview

Shortly after taking off, an airplane was navigating a flight path parallel to a river when it encountered an obstacle. The aircraft collided with two of five unmarked utility wires that spanned across the waterway. This initial impact compromised the stability of the plane, leading to a subsequent crash into the river below.

Damage and Injuries

The collision with the water resulted in substantial damage to the airframe. Despite the severity of the structural impact, both occupants survived with minor injuries. The pilot and one passenger were the only individuals aboard the aircraft at the time of the accident.

Pilot Recommendations

In post-accident inquiries regarding preventive measures, the pilot offered specific advice for improving safety in similar scenarios. The pilot suggested that minimum altitude requirements should be increased by at least double. This adjustment is intended to provide adequate reaction time for pilots to identify and avoid low-level obstacles such as unmarked wires.

Contributing factors

Effect on operationPilotAltitude — Not attained/maintained