The Board determined that the flight crew started to taxi the aircraft before its perimeter was clear, following confusion in the radio communications. The two-vehicle drivers sustained minor injuries the three occupants of the cherry-pickers received fatal injuries.The aircraft started to move forward and overturned the two de-icing vehicles that were still in front of the aircraft’s horizontal stabilizers.The crew heard “dégivrage terminé” (de-icing completed), and the captain asked the co-pilot to inform the apron controller that the aircraft was ready to taxi.The four engines were running during the de-icing operation.
The aircraft was being prepared for a scheduled flight from Mirabel to Casablanca, Morocco, with a stop at New York, New York.The Royal Air Maroc Boeing 747-400 was parked in the de-icing centre of Montreal (Mirabel) International Airport, Quebec. Introduction – What can happen when it all goes wrong!Ĭase Study – Collision with vehicle Royal Air Marocīoeing 747-400 CN-RGA Montreal (Mirabel) International Airport, Quebec 21 January 1995 Sofema Aviation Services (SAS) Presents considerations related to best practice communication procedures during Ground De-icing / Anti-icing Operations.
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