Casualties unknown

Taxiway Wingtip Collision Between Two Aircraft (N758LW)

Idaho Falls, ID, US

On July 17, 2003, a Cessna R172K (registration N758LW) operated by Freddie L. Sermon was involved in an aviation accident near Idaho Falls, ID. Investigators recorded the probable cause as: The pilot's inadvertent collision with a parked aircraft while maneuvering to avoid oncoming traffic during taxi operations. 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

A private pilot maneuvering to avoid oncoming traffic on a shared taxiway inadvertently struck a parked aircraft, resulting in wingtip contact between the two planes.

What happened

The incident occurred while a private pilot was operating an aircraft on the ground. The pilot reported that he was taxiing from a parking area toward an active runway. During this maneuver, he encountered another airplane traveling in the opposite direction on the same taxiway.

To avoid a potential conflict with the oncoming traffic, the pilot attempted to steer his aircraft to the left. In the process of making this evasive adjustment, he inadvertently collided with an aircraft that was parked nearby. The impact resulted in the taxiing airplane's left wing contacting the right wing of the stationary aircraft.

The investigation

Following the incident, an examination of the involved aircraft was conducted to determine the extent of the damage. The investigation confirmed that the primary physical evidence consisted of contact between the wings of the two airplanes. No other mechanical failures or environmental factors were cited as contributing to the collision during the taxiing phase.

Findings

The circumstances of the accident point to a loss of situational awareness or spatial judgment during ground operations. The pilot's attempt to navigate around moving traffic led to an unintended contact with a static obstacle. This highlights the challenges of maneuvering in confined spaces on airport taxiways where visibility and clearance margins are limited.

Safety message

Pilots should exercise heightened caution when taxiing in areas with mixed traffic and parked aircraft. Maintaining adequate clearance from stationary objects while avoiding moving vehicles requires careful planning and continuous visual scanning of the surrounding environment.

Probable cause

The pilot's inadvertent collision with a parked aircraft while maneuvering to avoid oncoming traffic during taxi operations.

Frequently asked questions

What happened in the 17 Jul 2003 Cessna R172K accident near Idaho Falls, ID?

A private pilot maneuvering to avoid oncoming traffic on a shared taxiway inadvertently struck a parked aircraft, resulting in wingtip contact between the two planes.

What aircraft was involved and where did it happen?

The accident on 17 Jul 2003 involved a Cessna R172K, registration N758LW, operated by Freddie L. Sermon, at Idaho Falls, ID.

What was the probable cause of the accident?

The pilot's inadvertent collision with a parked aircraft while maneuvering to avoid oncoming traffic during taxi operations.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20030929X01612. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.