As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX FLIGHT NR 2304: ICE DETECT ON ED. CDS INDICATES R PROBE FAIL. AIRCRAFT RETURNED TO GATE. MAINTENANCE REMOVED AND REPLACED RT ICE DETECTOR PROBE IAW Q400 AMM TASK 30-80-01-400-801. OPS CHECK GOOD. RESET CIRCUIT BREAKER. AIRCRAFT RETURNED TO SERVICE.