As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#2 PEC CAUTION LIGHT ILLUMINATED. REQUIRES TO REPLACE THE PLA QUADRANT, AND K-3 OR K-2 RELAY WITHIN 50 FLT AFTER DISCOVERY OF THE FAULT CODE POSTING PER Q400 MCN 6610594 ISSUE NO. 2. 3/10,RETRIEVED FAULT CODES IAW Q400 AMM 77-31-00-710-803. HAD FAULT CODE 200 AB, 126A, AND 134 (ON #2 SIDE). REPLACED RELAY 6100-3-K2 RJB1 AND PLA, ALL PLACARDS REMOVED. CB'S SET THIS CLEARS DMI. RETURNED TO SERVICE.