What was found
DURING CRUISE FLIGHT AT FL 360 WE RECEIVED A FIRE SUPPRESSION SYSTEM DISH GLARE SHIELD LIGHT. AT THE SAME TIME THE JUMPSEATERS IN THE COURIER AREA CONTACTED US & SAID THAT THE FIRE SUPPRESSION SYSTEM DISPLAY INDICATED A RED DISCHARGE BAR IN POSITIONS 1R & 1C. WE DECLARED AN EMER & LANDED RNWY 12L, EXITED THE RUNWAY AT TAXIWAY 1C. RAN THE EVACUATION CHECKLIST IN THE QRH & EVACUATED THE ACFT. RESTRICTION REF VA-FSS-1075 PG 26 FIRE SUPPRESSION SYSTEM, STC ST01874LA, INOPERATIVE. LONG TERM DEACTIVATION.