As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON PREFLIGHT NOTED DISCHARGE LIGHT ON CARGO FIRE PANEL. GROUNDED - YES. VERIFIED DISCHARGE LIGHT ILLUMINATED, WENT OUT ON ITS OWN WITH - NO - ACTION BY FLIGHT CREW. REMOVED #1 & #2 CARGO FIRE BOTTLES PER TASK CARD # 78226001. INSTALLED #1 & #2 CARGO FIRE BOTTLES REF TASK CARD 78226001. OPS CHECKS GOOD.