What was found
FLIGHT CREW REPORTED A RED CAUTION LIGHT ON CIDS PANEL. MAINTENANCE PLACED LT OVERWING SLIDE ON MEL 25-60-05, COND. 2 SLIDE BOTTLE PRESSURE INOPERATIVE. SLIDE BOTTLE PRESSURE WAS VERIFIED IN THE GREEN AND AIRCRAFT DEPARTED AS SCHEDULED. UPON RETURN TO PHX MAINTENANCE REMOVED AND REPLACED THE LT OVERWING SLIDE BOTTLE IAW AMM 25-62-46-401, OPERATIONAL CHECK WAS GOOD. **SUPP** VENDOR TEARDOWN OF RESERVOIR ASSEMBLY S/N C0249 CONFIRMED FAILURE OF UNIT. REPLACED 7 EACH O-RING SEALS, BACK UP RING PN 1002-0030-008, SEAT BALL P/N B14246-1, FUSIBLE PLUG PN B13984-3, PULLEY P/N B42013-1, AND CYLINDER P/N 64236-3.