Narrative:

We were taxiing to runway 28L via taxiway south cross runway 28C, taxiway F to taxiway P for a runway 28L intersection P departure. The PNF had the taxiway diagram, was handling communications and taxi instructions. After crossing runway 28C, turning left on taxiway F to taxiway P, I turned left on taxiway P to runway 28C instead of right to runway 28L. The PNF quickly corrected my error and directed me to turn right on taxiway P to runway 28L. I followed the PNF's directions, but was confused since the ATIS indicated runway 28L&right active and I saw aircraft landing runway 32. I continued taxiing to runway 28L via taxiway P, when the runway 28L hold short quickly emerged. Confused, I stopped the aircraft with the main wheels behind the hold short line and the fuselage forward of the main wheels over the line. There was no other aircraft landing, departing, taxiing or even near our vicinity. Realizing our mistake, we immediately called the tower for takeoff (but did not advise them of our error, the tower did not say anything regarding this issue). We were cleared for takeoff and did so uneventfully. I believe the contributing factors were: not having the taxiway diagram in front of me, being confused and not stopping to clarify my situational awareness, being fatigued from the night prior. The most contributing factor was my fatigue from a bout of brief insomnia the night before. I felt ok, but was obviously not as mentally sharp as I needed to be.

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Original NASA ASRS Text

Title: C650 CREW BECOMES CONFUSED AT PIT AND CROSSES HOLD SHORT LINE BEFORE CLRED FOR TKOF.

Narrative: WE WERE TAXIING TO RWY 28L VIA TXWY S CROSS RWY 28C, TXWY F TO TXWY P FOR A RWY 28L INTXN P DEP. THE PNF HAD THE TXWY DIAGRAM, WAS HANDLING COMS AND TAXI INSTRUCTIONS. AFTER XING RWY 28C, TURNING L ON TXWY F TO TXWY P, I TURNED L ON TXWY P TO RWY 28C INSTEAD OF R TO RWY 28L. THE PNF QUICKLY CORRECTED MY ERROR AND DIRECTED ME TO TURN R ON TXWY P TO RWY 28L. I FOLLOWED THE PNF'S DIRECTIONS, BUT WAS CONFUSED SINCE THE ATIS INDICATED RWY 28L&R ACTIVE AND I SAW ACFT LNDG RWY 32. I CONTINUED TAXIING TO RWY 28L VIA TXWY P, WHEN THE RWY 28L HOLD SHORT QUICKLY EMERGED. CONFUSED, I STOPPED THE ACFT WITH THE MAIN WHEELS BEHIND THE HOLD SHORT LINE AND THE FUSELAGE FORWARD OF THE MAIN WHEELS OVER THE LINE. THERE WAS NO OTHER ACFT LNDG, DEPARTING, TAXIING OR EVEN NEAR OUR VICINITY. REALIZING OUR MISTAKE, WE IMMEDIATELY CALLED THE TWR FOR TKOF (BUT DID NOT ADVISE THEM OF OUR ERROR, THE TWR DID NOT SAY ANYTHING REGARDING THIS ISSUE). WE WERE CLRED FOR TKOF AND DID SO UNEVENTFULLY. I BELIEVE THE CONTRIBUTING FACTORS WERE: NOT HAVING THE TXWY DIAGRAM IN FRONT OF ME, BEING CONFUSED AND NOT STOPPING TO CLARIFY MY SITUATIONAL AWARENESS, BEING FATIGUED FROM THE NIGHT PRIOR. THE MOST CONTRIBUTING FACTOR WAS MY FATIGUE FROM A BOUT OF BRIEF INSOMNIA THE NIGHT BEFORE. I FELT OK, BUT WAS OBVIOUSLY NOT AS MENTALLY SHARP AS I NEEDED TO BE.

Data retrieved from NASA's ASRS site as of July 2007 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.