Narrative:

Having to deal with last minute runway change and WX deviations on the civet 5 arrival (thunderstorms at civet intersection); the approach controller changed our runway (25L to 24R) at the last minute. Having been there a few times; but not much experience with the north complex; and deal with a relatively new first officer; and dealing with 2 additional aircraft that were vectored in front of us (737 for runway 25L and a A340 8 miles in front of us for runway 24R); I got focused on making sure that we were in the right position for landing and trying to avoid the A340's wake; the first officer (new to the plane was flying) and has been having problems with handling the aircraft on approach. Just too many things going on at the last few minutes of approach. After we had landed; and were passed to the ground controller; I was not challenged by ATC on the readback of our taxi clearance. I had pulled out the airport surface chart; but during the last minute change in our runway I had forgot to pull out the taxi route page. We exited on taxiway aa heading to the south for the FBO. The tower told us to cross runway 24L and then contact ground control. When we contacted the north ground controller; he told us to 'head south on aa (rest unknown)' I replied with 'straight ahead on aa'. I heard nothing else. After crossing checkpoint 3; and just before taxiway B; I replied to the controller if we needed to contact the south ground controller; and he replied that 'I should have contacted him at checkpoint 3 or the bridge.' I contacted the south controller and he said that we were cleared via the bridge route; and I told him that I didn't hear this clearance. The controller replied that he would pull the tapes. About 2-3 minutes later; the south controller came back and said that we were cleared via the bridge route. I apologized to him and told him that I replied to the north controller with what I heard; and was not challenged on my response. The south controller didn't say anything else; nor did he ask that I call him or the supervisor. The rest of the taxi went uneventful .from what I could see and hear there were no other aircraft that we affected by our deviation from the clearance. When we had contacted the south controller; he thought we were at the bridge (chkpoint 3) but actually almost to taxiway B. No additional action was prompted. The next time that I fly to lax I will be sure that I will pull out the airport route chart and review before landing. Additionally; at this airport; I will make sure that I challenge any clearance that is given; especially on the north complex. Lastly; the ground controllers need to challenge pilots' responses to clrncs that are not exact to their instructions.

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Original NASA ASRS Text

Title: A CL60 CAPT RPTS THAT AFTER A RWY CHANGE FROM LAX RWY 25 TO RWY 24; INCOMPLETE TAXI PREP ALLOWED THE FLT TO TAXI TO THE S COMPLEX INCORRECTLY.

Narrative: HAVING TO DEAL WITH LAST MINUTE RWY CHANGE AND WX DEVS ON THE CIVET 5 ARR (THUNDERSTORMS AT CIVET INTXN); THE APCH CTLR CHANGED OUR RWY (25L TO 24R) AT THE LAST MINUTE. HAVING BEEN THERE A FEW TIMES; BUT NOT MUCH EXPERIENCE WITH THE NORTH COMPLEX; AND DEAL WITH A RELATIVELY NEW FO; AND DEALING WITH 2 ADDITIONAL ACFT THAT WERE VECTORED IN FRONT OF US (737 FOR RWY 25L AND A A340 8 MILES IN FRONT OF US FOR RWY 24R); I GOT FOCUSED ON MAKING SURE THAT WE WERE IN THE RIGHT POSITION FOR LNDG AND TRYING TO AVOID THE A340'S WAKE; THE FO (NEW TO THE PLANE WAS FLYING) AND HAS BEEN HAVING PROBLEMS WITH HANDLING THE ACFT ON APCH. JUST TOO MANY THINGS GOING ON AT THE LAST FEW MINUTES OF APCH. AFTER WE HAD LANDED; AND WERE PASSED TO THE GND CTLR; I WAS NOT CHALLENGED BY ATC ON THE READBACK OF OUR TAXI CLRNC. I HAD PULLED OUT THE ARPT SURFACE CHART; BUT DURING THE LAST MINUTE CHANGE IN OUR RWY I HAD FORGOT TO PULL OUT THE TAXI ROUTE PAGE. WE EXITED ON TXWY AA HEADING TO THE S FOR THE FBO. THE TOWER TOLD US TO CROSS RWY 24L AND THEN CONTACT GND CTL. WHEN WE CONTACTED THE N GND CTLR; HE TOLD US TO 'HEAD S ON AA (REST UNKNOWN)' I REPLIED WITH 'STRAIGHT AHEAD ON AA'. I HEARD NOTHING ELSE. AFTER CROSSING CHECKPOINT 3; AND JUST BEFORE TXWY B; I REPLIED TO THE CTLR IF WE NEEDED TO CONTACT THE S GND CTLR; AND HE REPLIED THAT 'I SHOULD HAVE CONTACTED HIM AT CHECKPOINT 3 OR THE BRIDGE.' I CONTACTED THE S CTLR AND HE SAID THAT WE WERE CLRED VIA THE BRIDGE RTE; AND I TOLD HIM THAT I DIDN'T HEAR THIS CLRNC. THE CTLR REPLIED THAT HE WOULD PULL THE TAPES. ABOUT 2-3 MINUTES LATER; THE S CTLR CAME BACK AND SAID THAT WE WERE CLEARED VIA THE BRIDGE RTE. I APOLOGIZED TO HIM AND TOLD HIM THAT I REPLIED TO THE N CTLR WITH WHAT I HEARD; AND WAS NOT CHALLENGED ON MY RESPONSE. THE S CTLR DIDN'T SAY ANYTHING ELSE; NOR DID HE ASK THAT I CALL HIM OR THE SUPVR. THE REST OF THE TAXI WENT UNEVENTFUL .FROM WHAT I COULD SEE AND HEAR THERE WERE NO OTHER ACFT THAT WE AFFECTED BY OUR DEV FROM THE CLRNC. WHEN WE HAD CONTACTED THE S CTLR; HE THOUGHT WE WERE AT THE BRIDGE (CHKPOINT 3) BUT ACTUALLY ALMOST TO TXWY B. NO ADDITIONAL ACTION WAS PROMPTED. THE NEXT TIME THAT I FLY TO LAX I WILL BE SURE THAT I WILL PULL OUT THE ARPT RTE CHART AND REVIEW BEFORE LNDG. ADDITIONALLY; AT THIS ARPT; I WILL MAKE SURE THAT I CHALLENGE ANY CLRNC THAT IS GIVEN; ESPECIALLY ON THE N COMPLEX. LASTLY; THE GND CTLRS NEED TO CHALLENGE PLTS' RESPONSES TO CLRNCS THAT ARE NOT EXACT TO THEIR INSTRUCTIONS.

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.