What was found
THE NR 1 ENGINE B-FIRELOOP LIGHT FLICKERED DURING CLIMBOUT AND THEN STOPPED. FIRE TEST WAS GOOD. THE NR 2 ENGINE A-FIRELOOP DID NOT TEST. THE NR 2 ENGINE B-LOOP WAS ON PLACARD. THE NR 1 ENGINE WAS SHUT DOWN AND THE AIRCRAFT WAS DIVERTED TO OSA WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE P1-8113 AND P1-8106 FIRE DETECT CONNECTOR PLUGS DIRTY. THE ELECTRICAL CONNECTORS WERE CLEANED AND SECURED. IN ADDITION, THE NR 2 ENGINE P1-8104 FIRE DETECT CONNECTOR WAS CLEANED. A PNEUMATIC DUCT LEAK CHECK WAS PERFORMED AND NO TROUBLE WAS FOUND. ALL PNEUMATIC DUCT CLAMPS WERE TIGHTENED AND SECURED. THE NR 1 AND NR 2 ENGINES WERE RUN AND ALL OPERATION CHECKED NORMAL.