What was found
(ETOPS)FLT# 44, LGW-JFK. TEMP CTL 1 CLASS 2 MSG ( CLASS II MAINTENANCE MESSAGES DISPLAYED ON ECAM STATUS PAGE OF ECAM SYSTEM DISPLAY 4) FAULT(S) INDICATED BY TEMP CTL 1 (2) ); ITEM PLACED ON MEL 21-00-00, CAT'C', PER MCC ACKEEM, MDDR 479640, MX4 UPDATED AND PLACARD INSTALLED. REMOVED AND REPLACED PACK 2 FLOW CONTROL VALVE IAW AMM 21-51-51. OPS CHK OK. MDDR 479640 CLEARED. (SUPPLEMENTAL INFORMATION)