What was found
AROUND 16000 FEET, WE RECEIVED A DOOR 'F/D OVHD' EICAS MESSAGE. RAN QRH PROCEDURE, PRESSURIZATION WAS NORMAL. REPORTED TO DISPATCH AND AMC. NOTIFIED AMC, ITEM DEFERRED PER MEL 52-73-1-0-1, DMP C/W, M746469 RAISED & PLACARD INSTALLEDR/R'D THE CREW COMPARTMENT OVERHEAD HATCH LATCH ASS, IAW CMM 52-22-11. OPS CHK GOOD. DMP REVERSED. PLACARD REMOVED. M746469 CLOSED. IPC: 52-21-01-01-100.