Narrative:

The incident occurred on the second leg of a 3 leg part 135 charter. We dropped 5 passenger off at the FBO at det; mi. We were returning empty to rdg; PA. Upon completing our before taxi checklist; we discussed the taxi route to the expected departure runway (runway 15). We received a taxi clearance to taxi to runway 15; cleared to cross runway 25. As we commenced leaving the ramp; I asked the sic; who had the taxi diagram; how to pick up our taxi route. He advised me to make a left turn. As we proceeded to cross the end of runway 33; we both looked to clear final both ways. About the same time; we realized it was the wrong way. I continued to taxi clear of runway 33 and advised ground. Contributing factors included fatigue from an early wake-up. The charter broker delaying the departure from det; in hope of selling the empty leg. A loss of situational awareness. Upon returning to rdg and being advised to call det tower; I learned from the controller that 'unauthorized runway xings' happen consistently at det. There are no 'hot spot' taxi diagram markings and there are no additional runway holding lights in place. The close proximity of the FBO ramp to the intersecting runways is confusing. Possibly; markings that are more obvious should be considered. Possibly; the expanse of the concrete non movement area could be painted. In reviewing the taxi diagram; it alludes me how we could have made the mistaken turn. Our taxi route appears obvious. I should have asked for a progressive taxi to get us going in the right direction. Another contributing factor was being unfamiliar with the field. First time operating there for the both of us.

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Original NASA ASRS Text

Title: LR55 DEP FROM DET TAXIING TO RWY 15; CROSSED RWY 33 WITHOUT ATC CLRNC.

Narrative: THE INCIDENT OCCURRED ON THE SECOND LEG OF A 3 LEG PART 135 CHARTER. WE DROPPED 5 PAX OFF AT THE FBO AT DET; MI. WE WERE RETURNING EMPTY TO RDG; PA. UPON COMPLETING OUR BEFORE TAXI CHKLIST; WE DISCUSSED THE TAXI RTE TO THE EXPECTED DEP RWY (RWY 15). WE RECEIVED A TAXI CLRNC TO TAXI TO RWY 15; CLRED TO CROSS RWY 25. AS WE COMMENCED LEAVING THE RAMP; I ASKED THE SIC; WHO HAD THE TAXI DIAGRAM; HOW TO PICK UP OUR TAXI RTE. HE ADVISED ME TO MAKE A L TURN. AS WE PROCEEDED TO CROSS THE END OF RWY 33; WE BOTH LOOKED TO CLR FINAL BOTH WAYS. ABOUT THE SAME TIME; WE REALIZED IT WAS THE WRONG WAY. I CONTINUED TO TAXI CLR OF RWY 33 AND ADVISED GND. CONTRIBUTING FACTORS INCLUDED FATIGUE FROM AN EARLY WAKE-UP. THE CHARTER BROKER DELAYING THE DEP FROM DET; IN HOPE OF SELLING THE EMPTY LEG. A LOSS OF SITUATIONAL AWARENESS. UPON RETURNING TO RDG AND BEING ADVISED TO CALL DET TWR; I LEARNED FROM THE CTLR THAT 'UNAUTH RWY XINGS' HAPPEN CONSISTENTLY AT DET. THERE ARE NO 'HOT SPOT' TAXI DIAGRAM MARKINGS AND THERE ARE NO ADDITIONAL RWY HOLDING LIGHTS IN PLACE. THE CLOSE PROX OF THE FBO RAMP TO THE INTERSECTING RWYS IS CONFUSING. POSSIBLY; MARKINGS THAT ARE MORE OBVIOUS SHOULD BE CONSIDERED. POSSIBLY; THE EXPANSE OF THE CONCRETE NON MOVEMENT AREA COULD BE PAINTED. IN REVIEWING THE TAXI DIAGRAM; IT ALLUDES ME HOW WE COULD HAVE MADE THE MISTAKEN TURN. OUR TAXI RTE APPEARS OBVIOUS. I SHOULD HAVE ASKED FOR A PROGRESSIVE TAXI TO GET US GOING IN THE RIGHT DIRECTION. ANOTHER CONTRIBUTING FACTOR WAS BEING UNFAMILIAR WITH THE FIELD. FIRST TIME OPERATING THERE FOR THE BOTH OF US.

Data retrieved from NASA's ASRS site as of January 2009 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.