As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED A MASTER CAUTION BLEED LEAK IN NR 1 ENGINE. DECLARED AN EMERGENCY AND RETURNED TO DEPARTURE. ACFT REMOVED FROM SERVICE. R & R THE LT DTCV AFT SLEEVES AND BLEED SYS 1 LEAK CHECK, NO LEAKS NOTED AMM 21-60-01 AND 36-11-09. ACFT RETURNED TO SERVICE.