What was found
LT PACK LIGHT CAME ON DURING CLIMB OUT OF EWR. UNABLE TO RESET. REMOVED AND REPLACED #1 ACAU REF 21-51-02/401 PRECAUTIONARILY. OPS CHECK GOOD.PARTS USED: 42-2151-9-0003,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1526627 SN OFF 8202 UNIT, ASSY, AIR OFF 42-2151-9-0003 8202 ON 42-2151-9-0003 0042 REMOVED AND REPLACED LH IASC PRECAUTIONARILY REF AMM 21-61-22/401. OPS CHECK GOOD.PARTS USED: 42-2161-9-0002,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1392226 SN OFF 1321 IPC REFERENCE # 21-61-22-01 CONTROLLER, INT OFF 42-2161-9-0002 1321 ON 42-2161-9-0002 2109 QC OPS CHECK OF LEFT PACK GOOD IN REF TO INSTALLATION OF BOTH LRUS.