TXWY LIGHT KNOCKED DOWN DISTRACTS CAPT WHO TAXIES OFF TXWY.

Narrative

TAXIING NEBOUND ON TXWY B (COUNTER CLOCKWISE) APCHING INTXN OF TXWY A18 WHEN I NOTICED WHAT APPEARED TO BE A FOREIGN OBJECT ON THE TXWY. I FIXATED ON THE OBJECT TRYING TO FIGURE OUT WHAT IT WAS. IT WAS DARK AND VISIBILITY WAS SOMEWHAT REDUCED BY LIGHT RAIN AND FOG. AS I APCHED THE OBJECT I REALIZED IT WAS A BROKEN OFF BLUE TXWY LIGHT (NOT ILLUMINATED). I THEN REALIZED I HAD TAXIED OFF THE ACTIVE TXWY. THE SURFACE WAS ALL CONCRETE AND BLUE TXWY LIGHTS LINED BOTH SIDES OF THE AREA I WAS ON GIVING THE FALSE PERCEPTION THAT I WAS ON A TXWY. I STOPPED THE ACFT AND CONSULTED THE OTHER CREW MEMBERS TO GET INPUT OF OUR POS. AFTER REALIZING WHAT HAD OCCURRED AND WHERE WE WERE I SHARPLY TURNED THE ACFT TO THE R AND TAXIED BACK ONTO TXWY B. A POSSIBILITY EXISTS THAT WE MAY HAVE STRUCK ANOTHER TXWY LIGHT DURING THE R TURN MANEUVER. NO RPT WAS MADE TO THE GND CTLRS. I THINK THAT THE GREATEST CONTRIBUTING FACTOR TO THIS INCIDENT WAS THE TXWY LIGHT WHICH WAS KNOCKED DOWN AT TXWY A18. IT CAUSED ME TO CONTINUE STRAIGHT AHEAD INSTEAD OF TURNING R TO REMAIN ON TXWY B. THE 'X' SHOWS WHERE THE EXCURSION OCCURRED. OTHER CONTRIBUTING FACTORS WAS THE SET UP OF THE TXWYS SPECIFICALLY THE TURN REQUIRED AT TXWY A18 TO STAY ON TXWY B. REDUCED VISIBILITY CAUSED BY FOG AND THE NIGHT ENVIRONMENT ALSO CONTRIBUTED TO THE ERROR.