A PVT PLT TAXIES HIS ACFT ONTO AN INACTIVE RWY IN CONFLICT WITH HIS TAXI INSTRUCTIONS FROM GND CTL AT SBA; CA.

Narrative

I LANDED SBA RWY 25 AND EXITED TO THE L AT TXWY B; WHICH IS JUST E OF RWY 15L. AS THIS WAS MY FIRST TRIP TO SBA; I WAS UNFAMILIAR WITH PROCS. AFTER I WAS CLR OF RWY 25 AND STOPPED AT TXWYS B AND A (TXWY A RUNS PARALLEL TO RWY 25 AND TXWY B RUNS PARALLEL TO RWY 15); I CONTACTED GND CTL AND WAS TOLD TO LOOK FOR A BLUE LINE TO MY R; 'JOG' TO THE R; AND TAXI SBOUND TO TRANSIENT PARKING WHICH WAS ACCOMPLISHED WITHOUT INCIDENT. APPROX 1 HR LATER; PRIOR TO DEP; I CONTACTED CLRNC DELIVERY AND WAS CLRED TO RWY 25 VIA TXWY B; NBOUND TO TXWY A; THEN EBOUND TO RWY 25. I EXITED THE PARKING AREA AT TXWY K AND REMEMBERING THE 'JOG' ON ARR; FOLLOWED THE YELLOW TAXI LINE CONTINUING PAST WHAT TURNED OUT TO BE TXWY B TO WHAT TURNED OUT TO BE RWY 15/33. AFTER ESTABLISHED NBOUND; THE TWR TOLD ME TO STOP TAXI AND ADVISED THAT I WAS TAXIING ON RWY 15L/33R (NOT ACTIVE AT THE TIME); NOT TXWY B. A MIN OR SO LATER; THEY TOLD ME TO CONTINUE NBOUND TO TXWY A AND ONTO RWY 25. NO OTHER MENTION OF THE INCIDENT WAS MADE. ONCE AIRBORNE; MY PAX; WHO IS ALSO A PLT; AND I DISCUSSED THE INCIDENT AND THE FOLLOWING POSSIBLE CONTRIBUTING FACTORS: 1) THE VEERING W TO TXWY B ON ARR. 2) NEITHER OF US REMEMBERED SEEING A YELLOW 'LIMIT' OR 'HOLD SHORT' LINE ON THE GND AT TXWY K PRIOR TO RWY 15/33. 3) NEITHER OF US REMEMBERED SEEING A RWY 15/33 SIGN PRIOR TO THE RWY. 4) WHILE IN THE RESTAURANT; WE BOTH OBSERVED A FLT OF 5 RV6'S DEPART RWY 25 AT THE INTXN OF RWY 15L. 5) THE YELLOW TAXI LINE CONTINUED PAST TXWY B ON THE RWY NBOUND TO RWY 25. ON MAR/XA/99 WE RETURNED TO SBA TO REVIEW THE EVENTS. WE WERE BOTH AMAZED THAT THERE WAS INDEED BOTH A LIMIT LINE AND A RWY 15/33 SIGN AT TXWY K AND TXWY B; AND THE BLUE 'JOG' LINE LED TO TXWY B; NOT RWY 15/33. IT TURNED OUT THAT THIS CONFUSION WAS CAUSED BY THE FACT THAT AS YOU TURN OFF RWY 25 AT TXWY B; A YELLOW TAXI LINE RUNS STRAIGHT AHEAD LEADING INTO THE ACR PARKING AREA. THE BLUE LINE LEADS TO THE R AND TO TXWY B. FROM THE TRANSIENT PARKING AREA; THE ACR TAXI LINE IS NOT VISIBLE; CONTRIBUTING TO MY THOUGHT THAT I NEEDED TO TAXI ONE TXWY W. THE LEARNING FROM THIS INCIDENT IS THAT AFTER OUR BRIEF COCKPIT DISCUSSION ABOUT TAXIING PAST WHAT TURNED OUT TO BE TXWY B ONTO WHAT TURNED OUT TO BE RWY 15/33 I SHOULD HAVE CALLED GND CTL FOR CLARIFICATION.