As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW DECLARED AN EMERGENCY AND ACFT DIVERTED DUE TO NR 1 ENGINE BLEED LEAK AT FL310. ENGINE BLEED SYS, SINGLE, ICING OK. FOUND NR 1 ENGINE PRECOOLER OUTLET DUCT TO BE MISSING SEALANT. RE-SEALED PRECOOLER OUTLET DUCT IAW MM 54-5025. HIGH POWER ENGINE RUN FOUND SATISFACTORY. PACK 2 WAS ON MEL AT THE TIME OF THE EVENT.