A First Air Boeing 737-400, registration C-FFNE performing flight 7F-860 from Ottawa,ON to Iqaluit,NU (Canada) with 75 people on board, was accelerating for takeoff when the aft cargo door open indication illuminated prompting the crew to reject takeoff at 120 KIAS. The aircraft slowed safely, after coming to a stop the crew declared an emergency due to hot brakes. Emergency services responded and cooled the brakes.
The Canadian TSB reported that emergency services measured brakes temperatures of 200 degrees C. Maintenance subsequently identified a faulty microswitch as cause of the false door indication, the brakes were not damaged.
A replacement Boeing 737-400 registration C-FFNM reached Iqaluit with a delay of 10 hours.
The Aviation Herald