What was found
CREW RECEIVED A BLEED 1 LEAK MESSAGE ON EICAS. CREW RAN QRH, SHUTOFF REMAINING BLEED, DECLARED AN EMERGENCY AND DROPPED TO 10000 FEET. CREW DIVERTED TO WHERE THEY LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, R & R FAULTY LOOP 3 SECTION PL046 IN THE PYLON IAW AMM AND OPS CHECKED GOOD. ACFT IS GOOD FOR SERVICE.