What was found
FLT#778, LAS-BOS. (ETOPS) CLASS AIRBLEED MX MSG ON STATUS PAGE ( CLASS II MAINTENANCE MESSAGES DISPLAYED ON ECAM STATUS PAGE OF ECAM SYSTEM DISPLAY 1) FAULT(S) INDICATED BY AIR BLEED ); TROUBLE & RESET BMC'S PER AMM 36-11-34. OPS CHECK NORMAL. NO FUTHER DEFECT AT THIS TIME MX-4 UPDATED, MCC NOTIFIED PLACARD REMOVED.