SMA PLT CROSSES HOLD LINE WHEN TAXIING TO RWY.

Narrative

I WAS DEPARTING DAYTONA BEACH; FL; (DAB) FOR STUART; FL; (SUA). GND CTL CLRED ME TO RWY 7R ON TXWY W WITH A HOLD SHORT OF RWY 7L. AFTER HOLDING AT RWY 7L I WAS CLRED ACROSS RWY 7L AND CONTINUED ON TXWY W. AS I APCHED RWY 7R IT APPEARED THAT I WOULD ARRIVE AT AN INTXN WITH RWY 7R AND I WAS CONCERNED BECAUSE IT IS A SHORT RWY FOR AN INTXN TKOF. I HAD A CLIPBOARD ON MY LAP WITH CHARTS AND AN ARPT DIAGRAM. I TRIED TO ACCESS THE ARPT DIAGRAM AND THE WHOLE THING FELL OFF MY LAP ONTO THE FLOOR. THERE WERE NO ACFT IN FRONT OF ME ON TXWY W SO I LOOKED AND REACHED DOWN TRYING TO RETRIEVE THE FALLEN MATERIAL. WHILE MY HEAD WAS DOWN I APPARENTLY CROSSED TXWY S AND THE RWY 7R HOLD LINE. THE GND CTLR THEN CALLED FOR ME TO HOLD SHORT OF RWY 7R. I IMMEDIATELY STOPPED AND DID NOT PENETRATE RWY 7R BUT WAS ACROSS THE HOLD LINE. THE HOLD SHORT DID NOT COME BEFORE I CROSSED THE HOLD LINE. ALSO I WOULD POINT OUT THAT I WAS NEVER INSTRUCTED TO GO FROM TXWY W TO TXWY S AND THEN TO RWY 7R. AFTER THE STOP THE GND CTLR HAD ME DO A 180 DEG TURN AND THEN TURNED ME ONTO TXWY S AND THEN TO RWY 7R END. A NORMAL DEP THEN FOLLOWED. I THINK THIS INCIDENT WAS DUE TO A TAXI CLRNC THAT WAS NOT COMPLETE. IN ADDITION I SHOULD NOT HAVE PUT MY HEAD DOWN TO RETRIEVE THE FALLEN MATERIAL. I WAS A TRANSIENT AT A VERY BUSY ARPT THAT HAS A LOT OF FLT SCHOOL ACTIVITY AND I THINK THE GND CTLR FELT THAT EVERYONE KNEW THAT THEY SHOULD GO FROM TXWY W TO TXWY S TO REACH THE END OF RWY 7R. TECHNICALLY I DIDN'T VIOLATE MY CLRNC; IE; TXWY W TO RWY 7R.