Narrative:

After establishing radio contact with lvk tower. The controller advised me to report entering a 2 mi base for runway 25R. I acknowledged this and read it back to the tower. As I continued towards the airport, I heard several other aircraft advise lvk tower that they were inbound for landing. As I approached 3 mi from lvk, I was instructed to make a left turn to the left downwind for separation between myself and a citation jet that was inbound on the ILS runway 25. At this point I became slightly confused and asked the controller to verify my instructions. I read back what I thought I was instructed to do and began a slow left turn to join the left downwind. As I crossed the final approach course to runway 25R, I was about 1900 ft MSL. The controller advised me that I was crossing over the final approach course and failed to comply with his instructions. He then gave me new instructions and advised me to execute a 270 degree turn back to the airport behind the citation jet and cleared me to land on runway 25L. I apologized and followed his instructions. I believe I was confused about the controller's instructions because of my severe fatigue and diminishing performance from lack of water and food. My employer was a passenger in the right seat of the airplane and was admonishing me about other traffic in the area and I should continue to get updated information of their position in relation to ours, this was distracting. I also believe the controller should have instructed the faster citation jet to slow down since I was closer to the airport and slower. I further believe the controller was also overwhelmed with the increase in traffic he was controling.

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Original NASA ASRS Text

Title: AFTER A CLRNC AMENDMENT FOR THE TFC PATTERN WAS ISSUED, A POTENTIAL CONFLICT WAS CALLED BY TWR CTLR WHEN ARR PA34 PLT CROSSES APCH PATH OF ACTIVE RWY, 1000 FT ABOVE AN APCHING CITATION AT LVK, CA.

Narrative: AFTER ESTABLISHING RADIO CONTACT WITH LVK TWR. THE CTLR ADVISED ME TO RPT ENTERING A 2 MI BASE FOR RWY 25R. I ACKNOWLEDGED THIS AND READ IT BACK TO THE TWR. AS I CONTINUED TOWARDS THE ARPT, I HEARD SEVERAL OTHER ACFT ADVISE LVK TWR THAT THEY WERE INBOUND FOR LNDG. AS I APCHED 3 MI FROM LVK, I WAS INSTRUCTED TO MAKE A L TURN TO THE L DOWNWIND FOR SEPARATION BTWN MYSELF AND A CITATION JET THAT WAS INBOUND ON THE ILS RWY 25. AT THIS POINT I BECAME SLIGHTLY CONFUSED AND ASKED THE CTLR TO VERIFY MY INSTRUCTIONS. I READ BACK WHAT I THOUGHT I WAS INSTRUCTED TO DO AND BEGAN A SLOW L TURN TO JOIN THE L DOWNWIND. AS I CROSSED THE FINAL APCH COURSE TO RWY 25R, I WAS ABOUT 1900 FT MSL. THE CTLR ADVISED ME THAT I WAS XING OVER THE FINAL APCH COURSE AND FAILED TO COMPLY WITH HIS INSTRUCTIONS. HE THEN GAVE ME NEW INSTRUCTIONS AND ADVISED ME TO EXECUTE A 270 DEG TURN BACK TO THE ARPT BEHIND THE CITATION JET AND CLRED ME TO LAND ON RWY 25L. I APOLOGIZED AND FOLLOWED HIS INSTRUCTIONS. I BELIEVE I WAS CONFUSED ABOUT THE CTLR'S INSTRUCTIONS BECAUSE OF MY SEVERE FATIGUE AND DIMINISHING PERFORMANCE FROM LACK OF WATER AND FOOD. MY EMPLOYER WAS A PAX IN THE R SEAT OF THE AIRPLANE AND WAS ADMONISHING ME ABOUT OTHER TFC IN THE AREA AND I SHOULD CONTINUE TO GET UPDATED INFO OF THEIR POS IN RELATION TO OURS, THIS WAS DISTRACTING. I ALSO BELIEVE THE CTLR SHOULD HAVE INSTRUCTED THE FASTER CITATION JET TO SLOW DOWN SINCE I WAS CLOSER TO THE ARPT AND SLOWER. I FURTHER BELIEVE THE CTLR WAS ALSO OVERWHELMED WITH THE INCREASE IN TFC HE WAS CTLING.

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.