from the aircraft in accordance with the GAC Computaized Maintenance Program (CMPI work codes 273007 and 273008. respectively. I.E.FT ELEVATOR RI El EVATOR DATE CODE 11-88 11.88 old PART No. 1159C820002-S9 1159CS10001-SIO new PART No. 1159SB40518-1 11595B40518-2 SERIAL No. 1086 1086 BALANCE