Casualties unknown

Aircraft Nosed Over After Striking Unmarked Power Lines During Landing (N7734U)

Denmark, GA, US

On June 29, 1987, a Cessna 172E (registration N7734U) operated by Gary G. Duffey was involved in an aviation accident near Denmark, GA. Investigators recorded the probable cause as: The pilot's failure to see and avoid unmarked power lines during the landing phase, which resulted in the severing of the nose gear and subsequent nosed-over of the aircraft. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-19Data APIEditorial standards

An aircraft struck unmarked power lines while landing at a private airstrip, severing the nose gear and causing the plane to nosed over. The pilot was unaware of the hazard.

What happened

During the landing phase at a private airstrip, the aircraft encountered an obstacle that resulted in significant structural damage. The pilot was attempting to land the aircraft on a new strip designated for an annual inspection by mechanics. While approaching the runway, the aircraft struck overhead power lines. The impact severed the nose gear assembly.

As the aircraft continued its landing roll, the pilot lowered the nose wheel onto the ground. Without the support of the nose gear, the aircraft nosed over and came to rest in an inverted position. The pilot had not been aware of the presence of the power lines at this location. The lines were not marked with any visible indicators.

The investigation

Post-accident examination confirmed that the primary damage was caused by the contact with the power lines during the final approach and landing. The nose gear was severed, leading to the subsequent nosed-over condition. The airstrip owner acknowledged the lack of visibility regarding the wires. Measures have been taken to address this safety gap.

Findings

The accident occurred because the pilot was unaware of the power lines that crossed the approach path. These lines were not marked, making them difficult to see during the landing maneuver. The airstrip owner has since ordered markers to be installed by the power company upon receipt to prevent similar incidents in the future.

Safety message

Pilots operating at uncontrolled or private airstrips should exercise extreme caution regarding overhead obstacles. Ensure that all potential hazards, such as power lines, are clearly marked and visible before attempting a landing.

Probable cause

The pilot's failure to see and avoid unmarked power lines during the landing phase, which resulted in the severing of the nose gear and subsequent nosed-over of the aircraft.

Frequently asked questions

What happened in the 29 Jun 1987 Cessna 172E accident near Denmark, GA?

An aircraft struck unmarked power lines while landing at a private airstrip, severing the nose gear and causing the plane to nosed over. The pilot was unaware of the hazard.

What aircraft was involved and where did it happen?

The accident on 29 Jun 1987 involved a Cessna 172E, registration N7734U, operated by Gary G. Duffey, at Denmark, GA.

What was the probable cause of the accident?

The pilot's failure to see and avoid unmarked power lines during the landing phase, which resulted in the severing of the nose gear and subsequent nosed-over of the aircraft.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X31116. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.