As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#278, SFO-FLL. (ETOPS) 'CLASS II AIR BLEED ( CLASS II MAINTENANCE MESSAGES DISPLAYED ON ECAM STATUS PAGE OF ECAM SYSTEM DISPLAY 1) FAULT(S) INDICATED BY AIR BLEED ); DURING TROUBLESHOOTING ECS BLEED LINE TO PYLON (FWD) WAS LEAKING. PER TSM 36-11-00-810-A15-A. REMOVED AND REPLACED ECS SENSE LINE IAW AMM TASK 36-11-49-400-822-A. OPS & LEAK CHECK GOOD. THIS CLEARS MDDR 550606. MX-4 UPDATED. PLACARD REMOVED.'