Aircraft wing collision with deicing cart during taxi

Casualties unknown • Wenatchee, WA, US

A wing deicing cart was struck by an aircraft's right wing tip during a left turn on the ramp, resulting in substantial damage to the right aileron.

What happened

Following an uneventful landing, the flight crew received clearance to taxi toward the terminal. While taxiing, a ground marshaller provided signals directing the airplane to execute a left turn toward the northwest. As the crew initiated this maneuver, the right wing tip of the aircraft collided with a wing deicting cart.

The impact caused the cart to tumble and bounce toward the trailing edge of the right wing. A portion of the deicing cart impaled the right aileron, resulting in substantial damage to the aircraft. The captain and first officer were unable to observe the cart in time to prevent the collision during the turn.

Findings

Investigation into the incident revealed several contributing factors regarding ramp operations and equipment placement:

  • The marshaller was utilizing a parking spot on the ramp that was intended for use by a smaller aircraft.
  • The airport ramp area lacked lead-in lines or specific markings to assist with taxi guidance.
  • There was no designated 'safe movement' zone established in the area.
  • The deicing cart had been previously identified as a potential hazard by the former station manager, but it remained in its position due to its required proximity to an electrical source.

Probable cause

The collision occurred because the flight crew did not observe the deicing cart in time to stop the turn, compounded by the use of an inappropriate parking spot for the aircraft size and a lack of taxi guidance markings or designated safe movement zones on the ramp.

Frequently asked questions

What happened in the 1997-03-26 DE Havilland DHC-8 accident near Wenatchee, WA?

A wing deicing cart was struck by an aircraft's right wing tip during a left turn on the ramp, resulting in substantial damage to the right aileron.

What aircraft was involved and where did it happen?

The accident on 1997-03-26 involved a DE Havilland DHC-8, registration N826PH, operated by Horizon Airlines, Inc., at Wenatchee, WA.

What was the probable cause of the accident?

The collision occurred because the flight crew did not observe the deicing cart in time to stop the turn, compounded by the use of an inappropriate parking spot for the aircraft size and a lack of taxi guidance markings or designated safe movement zones on the ramp.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X07632. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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