What was found
PDIS 610 26-12 2566 20FEB23 SIN FACT U DURING PREFLIGHT, NOTED AFT DISCHARGE AGENT SWITCH LIGHT FLASHING. ***EMERGENCY DECLARED*** AMM: 26-14-01-4 AMM: 26-14-01-5 OPENED AFT CARGO DOOR WITH FIRE MEN ON SIGHT AND INSPECT FOUND NO SIGN OF SMOKE AND FIRE. UNLOAD ALL CARGOS FROM AFT CARGO COMPT AND FOUND NO FIRE AND SMOKE. RESET D-12 CARGO SMOKE DET AND D-13 CARGO OVERHEAT C/B NO HELP. POWER DOWN AND POWER AIRCRAFT UP FOUND AFT DISCHARGE AGENT SWITCH LIGHT NOT FLASHING. PERFORMED SMOKE DETECTOR OPS TEST PER MD11 AMM 26-14-01-5 ALL TEST PASSED AND ALL INDICATIONS NML. A/C OK FOR SERVICE.