FLC OF BE400A SETS VOR TO FLY OUTBOUND BUT ENDS UP TO THE R OF COURSE. DEP CTLR QUERIES FLC. APPARENTLY SOME CONFUSION ABOUT WHICH MODE WAS SELECTED AT THE TIME.

Narrative

TKOF FROM RWY 33; R TURN TO GET OVER RIVER. I HAD SET #1 VOR TO DCA AND DISPLAYED #1 VOR ON L SDU WITH COURSE LINE SET FOR 328 DEGS. AT GEORGETOWN RESERVOIR I COULD NOT SEE THE RIVER OVER THE NOSE OF THE ACFT; SO I GLANCED AT THE SDU WHICH WAS INDICATING STEER L. I WAS SURE THIS COULD NOT BE CORRECT AT WHICH POINT WE REACHED 3000 FT SO I HAD TO LEVEL THE ACFT. AT THIS TIME DEP ASKED WHAT OUR HDG WAS AND I NOTICED I COULD SEE THE RIVER OFF TO R SIDE OF THE ACFT. WE REPLIED OUR HDG WAS 320 DEGS AND DEP GAVE US A VECTOR TO THE S. AFTER CLBING TO ALT I TRIED TO DETERMINE WHY MY BACKUP PLAN HAD NOT WORKED. WE FOUND THE #1 VOR WAS NO LONGER TUNED TO DCA. I KNOW I CHKED THE NAV FREQS AS WE LEFT THE HOLD SHORT LINE FOR RWY 33 BUT I DO NOT REMEMBER IF I HAD TO ACTUALLY LOAD 111.0 INTO #1 VOR WHICH WOULD FORCE THE MANUAL MODE FOR NAV TUNING OR IF 111.0 WAS ALREADY IN THE SELECTION AND I FAILED TO NOTICE THE #1 NAV WAS IN AUTO SELECT. SUPPLEMENTAL INFO FROM ACN 380457: AS A CREW; I FEEL WE WORK TOGETHER. ALTHOUGH ON THIS DAY; I WAS DISTR PRIOR TO LINEUP FOR TKOF. HUNDREDS OF FLYING SEAGULLS IN THE AREA. CHKLIST HAD BEEN COMPLETED. WE TAXIED INTO POS TO HOLD. I DID NOT MAKE SURE A NAV SYS WAS IN MANUAL TUNE. BOTH FMS SYS MUST HAVE BEEN IN AUTO TUNE. BOTH SDU'S HAD BEEN SET TO FLY 328 DEGS AFTER 4 DME. AFTER TKOF WE FLEW THE RIVER AS ON THE CHART. THE NAV SYS INDICATED A TURN TO L; SO THE CAPT WAS MAKING THE TURN WHEN DEP CALLED. DEP GAVE US A VECTOR AND SOUNDED UPSET. NOTHING ELSE WAS SAID.