PLT CROSSES ACTIVE RWY ENRTE TO DEP RWY.

Narrative

WHILE I WAS TAXIING TO RWY 36 FROM THE FBO RAMP; THE TWR CTLR INFORMED ME THAT I HAD CROSSED AN ACTIVE RWY (6) WITHOUT CLRNC. BOTH RWY 6 AND RWY 36; WHICH INTERSECT; WERE ACTIVE. I PAUSED BRIEFLY BEFORE XING RWY 6 TO CONSIDER WHETHER TO CONFIRM MY CLRNC TO CROSS IT. AFTER RECALLING THAT A CLRNC TO A RWY INCLUDED CLRNC TO CROSS RWYS AS NECESSARY; I PROCEEDED ACROSS RWY 6. I HAD BEEN MONITORING TFC ON THE RADIO; AND I LOOKED CAREFULLY TO BE SURE THAT THE RWY WAS CLR. THE CTRL WAS POLITE AND FIRM IN BRINGING THE PROB TO MY ATTN. I PERCEIVED AT ALL TIMES THAT I WAS CLRED TO RWY 36; BUT I TRUST THAT RECORDINGS WOULD CONFIRM THAT HE WAS CORRECT. THE INCIDENT HAS SHAKEN ME. I READ A LOT OF AVIATION LITERATURE; SO I KNOW ABOUT THE ISSUES OF RWY INCURSIONS; AND I ALWAYS TRY TO BE VERY SAFE AND FOLLOW THE RULES. THE FACT THAT THIS INCIDENT OCCURRED IN SPITE OF MY EFFORTS LEADS ME TO RPT THIS INCIDENT -- THE FIRST I HAVE EVER RPTED. RWYS 6 AND 36 ALSO WERE ACTIVE WHEN I ARRIVED ABOUT XA00. I LANDED FROM AN ILS APCH TO RWY 36; WITH INSTRUCTIONS TO HOLD SHORT OF RWY 6. I TAXIED TO FBO ON M; XING RWY 6 ON THE WAY. PREPARING FOR DEP; I WROTE DOWN THE ATIS AND THEN REQUESTED FLT FOLLOWING WHEN I CONTACTED GND WITH MY VFR DEP PLANS. I RECEIVED A XPONDER CODE AND UNDERSTOOD THAT I WAS TO TAXI TO RWY 36; WITH THE POSSIBILITY OF AN INTXN DEP. I HAVE MADE ABOUT 5 TRIPS TO THIS ARPT; ABOUT 1 PER YR. I THEREFORE WAS REFERRING TO THE ARPT DIAGRAM IN THE CURRENT TERMINAL PROCS PUB. I ORDINARILY REPEAT BACK TAXIING INSTRUCTIONS; SO I MUST HAVE REPEATED BACK RWY 6 WHILE ALL THE WHILE THINKING RWY 36 IN MY MIND. I THINK MY BELIEF WAS REINFORCED BECAUSE THE CTLR DID NOT SPECIFY AN INTXN; AND WHILE THERE ARE 2 REASONABLE INTXNS FOR DEPARTING RWY 36; LABELED M3 AND M4; THERE IS NO LABEL ON THE ONLY REASONABLE INTXN FOR DEPARTING RWY 6 (WHICH IS WHERE M CROSSES 6). MANY FACTORS CONTRIBUTED TO THIS OCCURRENCE; INCLUDING MY RELATIVE UNFAMILIARITY WITH THE ARPT; ACTIVE INTERSECTING RWYS WITH SIMILAR NUMBERS; AND PERHAPS MY EARLIER ARR ON RWY 36. I KNOW THAT IN THE FUTURE I WILL BE MUCH MORE CAREFUL ABOUT XING RWYS. I EXPECT TO CONFIRM RWY XING INSTRUCTIONS WHENEVER IT IS NECESSARY TO CROSS ONE THAT IS ACTIVE.