Narrative:

Event started while taxiing aircraft from terminal to active runway (100% snow covered area, ramp in approximately 1 mi visibility with snow and blowing snow). South a single pilot waiver in the citation ii, I was the only crew on this flight. As a single pilot 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 destination along with other checklist items. I looked down to enter information. My familiarity with this uncontrolled airport led me into complacency about my exact position on ramp. Add to this situation a lack of visible markings because of snow cover and visibility. The right main landing gear left the ramp concrete and traversed a flat, snowy grass area. I realized the situation when I observed a taxiway light pass inside the right main gear. Unfortunately, it was too late to stop. I re-entered taxiway and continued taxi to end of runway hold short position. Concerned about possible damage, especially flaps, I shut down engines to check. Luckily, only a small scuff mark was left by taxiway bulb just below right inboard leading edge. I restarted engines and called unicom maintenance to advise them about light damage. While waiting for clearance, approximately 5 mins, unicom maintenance called to inform me that blue glass bulb had been knocked off, not broken or any other damage. Moral of story: do not taxi aircraft unless you can devote 100% full attention to that task, especially during inclement WX. Another thought -- do not rush anything while in-flight or on ground. Extra few mins is very inexpensive compared to damage to aircraft, single pilot or crew.

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Original NASA ASRS Text

Title: 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.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.