What was found
BAGG SMOKE EICAS MSG & MASTER WARNING IN LEVEL FLIGHT AT FL 360 BAGG EXT BUTTON PRESSED. EMER PROCEDURES COMPLIED WITH, DEFERRED IAW EL 26-03. R & R BAGGAGE FIRE EXT BOTTLE IAW AMM 26-23-01. OPERATIONS CHECKED GOOD MEL SYS RESTORED. FIREX BOTTLE-224 CU IN PN 337000271 SN 34195D1. R & R FWD & AFT CARGO SMOKE DETECTOR IAW 26-15-01. PERFORMED OPERATIONS CHECK IAW MM 26-15-00 & FAILED THE TEST SEE ITEM 1 LOG PAGE 3513485. FWD CARGO AREA SMOKE DETECTOR PN 473597-13 SN 1717. R & R FWD CARGO DOOR SMOKE DETECTOR IAW AMM 26-15-01. OPERATIONS CHECKED GOOD.