What was found
AFT EQ EXH FAN 1 STATUS MESSAGE TRANSFERRED TO MDDR# 154433 IAW MEL 21-58-05. DUE DATE: 11OCT21, CAT C.LP 1407448, ITEM M7: T/S IAW FIM 21-26 FAULT TREE 805. REMOVED AND REPLACED AFT EQUIP/LAV/GALLEY VENT FAN 1 (PN 4101487, IAW AMM 21-26-01. OPS CHECK GOOD. MESSAGE CLEARED FROM EICAS SCREEN.10OCT, LP 1407452, ITEM M7: REMOVED AND REPLACED M862 R ECS FAN CONTROL CARD IAW AMM 21-26-05, OPS CHECK GOOD. THIS CLEARS DMI 154433.