What was found
FLT JB111 BUF-JFK DURING TAKEOFF CLIMBOUT FROM BUF "BLEED 1 LEAK" EICAS MESSAGE ILLUMINATED, QRH COMPLETED, BLEED LEAK STILL ILLUMINATED. CREW DECLARED EMERGENCY AND RETURNED TO BUF AND LANDED SAFELY. BUF MX TROUBLESHOOTING PER AMM FIM 36-21-00-81-801-A FOUND CORRODED CERAMIC PIN ON CHANNEL 2 PYLON LOOP AT CONNECTOR J1045, CLEANED CONNECTOR AND REPLACED CERAMIC PIN IAW AMM 36-20-01. OPS CHECK GOOD, AIRCRAFT RETURNED TO SERVICE.