As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLIGHT, "RED DISPLAY TEMP" DISPLAYED ON CAPTAIN PFD AND ATTITUDE INDICATOR DISAPPEARED. PULLED OUT CAPTAIN'S PFD AND FOUND SCREEN OVER COOLING FAN VENT COMPLETELY COVERED WITH LINT, FUZZ, & DEBRIS. CLEANED OFF SCREEN AND REINSTALLED CAPTAIN'S PFD. OPS CHECKS GOOD IAW MM 34-000 AND 34-001.