As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, CREW RECEIVED NR 1ENGINE BLEED LEAK MESSAGE. CREW COMPLIED WITH AOM VOL 1 PROCEDURES, DECLARED AN EMERGENCY AND RETURNED TO DEPARTURE WITHOUT INCIDENT. PERFORMED LEAK CHECK BLEED 1 SYSTEM JOINT NO LEAKS FOUND. DURING INSPECTION FOUND BLEED 1 PRECOOLER V CLAMP LEAKING. SECURED THE CLAMP IAW AMM 20-10-10. OPS AND LEAK CHECKED SATISFACTORY IAW AMM 36-00-00.