As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS - WHILE TROUBLESHOOTING DMI # 204842 (REF. LOGPAGE 873976) FOUND #2 ENGINE HPV PYLON SENSE LINE CROSS THREADED & SEIZED ON ECS MID Y DUCT ADAPTER BLEED AIR LEAKING FROM SENSE LINE B NUT. // REPLACED HPV PYLON SENSE LINE AND ADAPTER TO ECS Y DUCT. REF AMM CH. 36-11-49-000-823-A & 36-11-49-400-823-A. OPS CHECK GOOD, NO LEAK DETECTED.