What was found
EN ROUTE NR 2 ENG FIRE INDICATION. ENG SHUTDOWN & ACFT DIVERTED. DUMPED FUEL & LANDED UNDER AMBER ALERT. ENG INSPECTED FOR EVIDENCE OF FIRE & OVERHEAT CONDITIONS, NONE FOUND. FIRE WARN SYS TEST PASSED. NO MX MESSAGE FAULTS RECORDED. THE HIGH POWER ENG RUN AT BGR & SUBSEQUENT FERRY FLIGHT BACK TO ORD, DID NOT DUPLICATE THE FIRE INDICATION. THE ITEMS REMOVED AS PRECAUTIONARY: FODC CARD, DUCT VENT VALVE (ALTHOUGH, GASKET WAS FOUND DAMAGED), & UPPER FIRE LOOP HAVE ALL CHECKED OK PER SHOP. THE A/C WAS INSPECTED FOR FIRE WARNING WIRE INTERFERENCE DESCRIBED ON 777-SL-24-032. THE A/C CHECKED OUT CLEAN. QAR & FDR INFORMATION HAS BEEN COMPILED & WILL BE FWD'D TO BOEING FOR ANALYSIS.