As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NO: N/A (MX FINDING) - L ENG BLEED INOP. DURING HEALTH CHECK, FOUND PNEUMATIC LEAK DUE TO A CRACKED LINE BETWEEN THE LH PRSOV REGULATOR AND THE LH 450 DEGREE SENSOR. THE LINE WAS REPLACED AND THE LEAK CHECK PASSED HOWEVER THE LH ENG BLEED REMAINED INOP DURING OEPRATIONAL CHECKS.