What was found
SEA FLIGHT NR 2418: POWER PLANT MESSAGE AFTER ENGINES STARTED. AIRCRAFT RETURNED TO GATE. MAINTENANCE INTERROGATED CDS. FOUND FAULT CODES 130B ON 32 PROP AND 274 ON NR 1 PROP. CLEARED FAULTS PER Q400 AMM TASK 61-20-36-070-801. CLEANED ALL ELECTRICAL CONNECTORS ON NR 1 AND NR 2 PEC AND PCU. PERFORMED GROUND IDLE ENGINE RUN PER AMM TASK 71-00-00-868-811. POWER PLANT MESSAGE AND FAULT CODES DID NOT REOCCUR. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.