As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDX- ON FLIGHT 2436 DISPLAY COOL CAUTION MESSAGE APPEARED AFTER TAKEOFF. COMPLIED WITH CHECKLIST SELECTION TO FLIGHT ALT FAN. MESSAGE EXTINGUISHED. REMOVED AND REPLACED COCKPIT DISPLAY FAN 1. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.