What was found
IN CRUISE (FL330) RECIEVED CARGO FIRE INDICATION WITH MASTER WARNING AND AFT 1 FLASHING DISCHARGE LIGHT. COMPLIED W/ APPROPRIATE PROCEDURES. DIVERT TO STL. ONLY FIRED BOTTLE NR 1. REPLACED LOWER CARGO COMP FIRE EXT CONTAINER NR 1, DISCHARGE HEADS AND DISCHARGE CARTRIDGES. R & R MISC. SYS. CONTROLLER PRECAUTIONARY PER MD10 MM 31-42-01. R&R CARGO FIRE CONTROL PANEL PER MD10 AMM 26-14-10-4 PANEL OPS CK OK, PER MD10 AMM 26-14-01 PG501. PERFORMED FIRE EXTINGUISHER CIRCUITS TEST PER M/M 26-22-01. PERFORMED OPS CHECK ON MSC PER M/M 31-42-01. CARGO FIRE TEST OPS CHECKS GOOD PER M/M 26-14-01. OK FOR SERVICE.