What was found
CABIN ALT WARNING AT FL250. CABIN CLIMED TO 12000 FEET W/ MEL 2 613D GUIDANCE PERFORMED DCPC BITE REF FIM 21-31 TASK 801 NO FAULTS FOUND.PLACED FWD CARGO HEAT DUCT SHUTOFF VALVE TO OPEN POSITION. PERFORMED OVERHEAT DETECTION CONTROL MODULE BITE REF FIM 26-18 TASK 801 SHOWS MAINT MESSAGE 64 RIGHT WING LE AND AC PACK BAY ALARM PERFORMED FIM 26-18-TASK 802 FAULT ISOLATION RESISTANCE MEASUREMENT FOUND M1763 OUT OF LIMITS REPLACED ELEMENT REF MM 26-18-02 PERFORMED BITE REF 26-18 TASK 801 NO FAULTS.