As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHEN PILOTS WERE USING FLOOD COOLING ON THE GROUND THEY HEARED A NOISE AND HAD A VIBRATION THEY SHUT THE SYSTEM DOWN . AFTER MAINTENANCE REMOVED THE FLOOD COOLING FAN MOTOR ASSY THEY FOUND A BROKEN FAN BLADE . THEY REPLACED FLOOD COOLING FAN MOTOR ASSY P/N OFF/ON 9910113-3 S/N ON 0019 GROUND CHECKED SERVICEABLE AND RETURNED AIRCRAFT TO SERVICE. (TC NR 20060905003)