What was found
RT PACK TEMP EICAS MESSAGE, PACK WILL NOT RESET. TRANSFERRED TO MDDR # 117154 AS PER MEL 21-51-01-01, CAT C. M PROCEDURES COMPLIED WITH. PLACARDS INSTALLED AND MCC NOTIFIED. LP 1066746 - M3: T/S PER FIM 21-51 FT 807. FOUND CONTROLLER FAULT LIGHT ON. PER AMM 21-51-14 SWAPPED LT TEMP CONTROLLER WITH RT CONTROLLER. VERIFIED RT CONTROLLER FAULT LIGHT ON FOLLOWS CONTROLLER. MCC NOTIFIED P/N 1151864-1/625946-9 CVG BIN CAB0408. LP 1066748 - M2: REMOVED AND REPLACED RT PACK TEMP CONTROLLER IAW AMM 21-51-14. PERFORMED BITE TEST, TEMP CONTROL VALVE FAULTED. MDDR STILL OPEN. OFF PART (PN: 1151864-1, SN: 079C-0642) LP 1066748 - M3: REMOVED AND REPLACED RT TEMP CONTROL VALVE IAW AMM 21-61-07. OPS CHECK GOOD. THIS CLEARS MDDR 117154. PLACARDS REMOVED AND MCC NOTIFIED.