FO PROGRAMMED THE WRONG RTE INTO THE FMC RESULTING IN THE FLC FLYING THE WRONG RTE ON DEP.

Narrative

DURING PREFLT; FO (RPTR) INADVERTENTLY PRELOADED CLT-DCA INTO FMS. OUR SCHEDULED RTE WAS CLT-RDU; THEN A FLT FROM RDU-DCA. OUR FILED RTE WAS FOR A LILLS DEP FROM CLT. DURING CLBOUT; THE CAPT (PF) NOTED THE NEARLY 90 DEG INTERCEPT ANGLE ON THE NAV DISPLAY (WHICH SHOWED CLT TO MERIL INTXN INSTEAD OF CLT TO LILLS; ABOUT 20 RADIALS APART) AT ABOUT THE TIME WE WERE INTERCEPTING THE MERIL TRANSITION; WE SWITCHED TO ZTL I RPTED ON FREQ AS JOINING THE MERIL TRANSITION. APPROX 1 MIN LATER; WE WERE CLRED DIRECT BUZZY AND THE BUZZY 5 ARR TO RDU. WE BOTH NOTICED THAT OUR NAV DISPLAY SHOWED THE RTE OF FLT CONTINUING PAST RDU TO DCA (OUR SECOND LEG). THE ATC CTLRS (ATL AND WASHINGTON) DID NOT QUERY US WHEN I CHKED ON FREQ AS INTERCEPTING THE MERIL TRANSITION; AND WE IMMEDIATELY COMPLIED WITH HIS NEW CLRNC ANYWAY TO BUZZY INTXN. BUT WE HAD TURNED FROM CLT DEP CTL'S HDG DURING THE RADIO HDOF. TCASII SHOWED NO OTHER KNOWN ACFT IN THE AREA. IN THE CHOCKS; BOTH CREWMEMBERS DRAW UP NAV PAGE ON FMS AND VERIFY RTE AS IT APPEARS LOADED INTO THE NAV EQUIP; THE PREFLT BRIEF IN OUR CASE DID NOT STOP US FROM INITIATING A TURN EBOUND TOO EARLY.