As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) A/C WAS AT GATE, NR 2 ENGINE ALREADY RUNNING. DURING NR 1 ENGINE START FLIGHT CREW ENCOUNTERED A FIRE WARNING. THE CREW FIRED BOTH FIRE BOTTLES AND CONDUCTED AN EMERGENCY EVACUATION OF THE AIRCRAFT. IT HAS BEEN DETERMINED THAT THE WARNING WAS OF A NUISANCE NATURE AND NO ACTUAL FIRE OCCURRED. INITIAL INVESTIGATION CARRIED OUT BY ENGINEERS PEC FIRE LOOP REPLACEMENT CURED DEFECT.