C550 PLT; DISTR BY COCKPIT DUTIES; TAXIES OFF HARD SURFACE AT ESC.

Narrative

EVENT STARTED WHILE TAXIING ACFT FROM TERMINAL TO ACTIVE RWY (100% SNOW COVERED AREA; RAMP IN APPROX 1 MI VISIBILITY WITH SNOW AND BLOWING SNOW). S A SINGLE PLT WAIVER IN THE CITATION II; I WAS THE ONLY CREW ON THIS FLT. AS A SINGLE PLT OPERATOR; WORKLOAD CAN BE QUITE HIGH IF NOT PROPERLY MANAGED AND MORE IMPORTANTLY PRIORITIZED! I BEGAN TAXI WHILE PROGRAMMING AN FMS AND A GPS FOR MY NEXT DEST ALONG WITH OTHER CHKLIST ITEMS. I LOOKED DOWN TO ENTER INFO. MY FAMILIARITY WITH THIS UNCTLED ARPT LED ME INTO COMPLACENCY ABOUT MY EXACT POS ON RAMP. ADD TO THIS SIT A LACK OF VISIBLE MARKINGS BECAUSE OF SNOW COVER AND VISIBILITY. THE R MAIN LNDG GEAR LEFT THE RAMP CONCRETE AND TRAVERSED A FLAT; SNOWY GRASS AREA. I REALIZED THE SIT WHEN I OBSERVED A TXWY LIGHT PASS INSIDE THE R MAIN GEAR. UNFORTUNATELY; IT WAS TOO LATE TO STOP. I RE-ENTERED TXWY AND CONTINUED TAXI TO END OF RWY HOLD SHORT POS. CONCERNED ABOUT POSSIBLE DAMAGE; ESPECIALLY FLAPS; I SHUT DOWN ENGS TO CHK. LUCKILY; ONLY A SMALL SCUFF MARK WAS LEFT BY TXWY BULB JUST BELOW R INBOARD LEADING EDGE. I RESTARTED ENGS AND CALLED UNICOM MAINT TO ADVISE THEM ABOUT LIGHT DAMAGE. WHILE WAITING FOR CLRNC; APPROX 5 MINS; UNICOM MAINT CALLED TO INFORM ME THAT BLUE GLASS BULB HAD BEEN KNOCKED OFF; NOT BROKEN OR ANY OTHER DAMAGE. MORAL OF STORY: DO NOT TAXI ACFT UNLESS YOU CAN DEVOTE 100% FULL ATTN TO THAT TASK; ESPECIALLY DURING INCLEMENT WX. ANOTHER THOUGHT -- DO NOT RUSH ANYTHING WHILE INFLT OR ON GND. EXTRA FEW MINS IS VERY INEXPENSIVE COMPARED TO DAMAGE TO ACFT; SINGLE PLT OR CREW.