B190 / B737, Calgary Canada, 2014

B190 / B737, Calgary Canada, 2014

Summary

On 29 March 2014, a Beech 1900D being taxied by maintenance personnel at Calgary entered the active runway without clearance in good visibility at night as a Boeing 737-700 was taking off. The 737 passed safely overhead. The Investigation found that the taxiing aircraft had taken a route completely contrary to the accepted clearance and that the engineer on control of the aircraft had not received any relevant training. Although the airport had ASDE in operation, a transponder code was not issued to the taxiing aircraft as required and stop bar crossing detection was not enabled at the time.

Description

On 29 March 2014, an out of service Beech 1900D (C-GWGA) being taxied by two Air Georgian maintenance personnel at Calgary in normal ground visibility at night entered the upwind end of the active runway without clearance as a Boeing 737-700 was taking off. The 737 passed overhead the aircraft with safe clearance without the need for avoiding action.

Investigation

An Investigation was carried out by the Canadian Transportation Safety Board. It was established that in the early hours of the day, arrangements were made with the airport operator to conduct an engine ground run on a Beech 1900D "at the holding bay of runway 29". An LAE and an apprentice completed preparations and started the engines before contacting TWR on the ground frequency and receiving taxi clearance to taxi from Apron 'V' to the Holding Bay of Runway 29 via Taxiway N and Runway 26 to hold short of Taxiway Y (see the diagram below which shows the cleared route in green). This clearance was read back correctly and no transponder code was issued by the controller.

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