Narrative:

While en route from elp to lax; we were filed for the pdz 4 arrival and briefed the arrival. The PF would stay on left navigation and the PNF would bring up the localizer on green needles; expecting runway 25R. From direction of flight; I also pulled the chart for runway 24R. Approaching pdz we were told to fly the seavu 1; expect runway 24R. I started to set up runway 24R but never brought up the runway 24R localizer frequency. I could not get the seavu 1 arrival to load and had to build it by hand one waypoint at a time. This kept my head down in the box for a long time; just keeping up with crossing restrictions. ATC asked if we had intercepted the runway 24R localizer. I said yes. ATC told us to fly heading 270 and intercept the runway 24R localizer. At that time I knew what was wrong and flipped the runway 24R localizer frequency up and we intercepted and flew the ILS and landed. ATC never asked us to call them after landing. To prevent a reoccurrence; I would suggest the following: 1) never have two approach plates out at the same time to parallel runways. 2) advise ATC if you need more time to load a new arrival. 3) verify and identify your localizer.

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Original NASA ASRS Text

Title: CITATION CE-560XL FLT CREW HAS A TRACK/HDG DEV DURING ARR TO LAX FOLLOWING A CLOSE-IN RWY CHANGE.

Narrative: WHILE ENRTE FROM ELP TO LAX; WE WERE FILED FOR THE PDZ 4 ARR AND BRIEFED THE ARR. THE PF WOULD STAY ON L NAV AND THE PNF WOULD BRING UP THE LOC ON GREEN NEEDLES; EXPECTING RWY 25R. FROM DIRECTION OF FLT; I ALSO PULLED THE CHART FOR RWY 24R. APCHING PDZ WE WERE TOLD TO FLY THE SEAVU 1; EXPECT RWY 24R. I STARTED TO SET UP RWY 24R BUT NEVER BROUGHT UP THE RWY 24R LOC FREQ. I COULD NOT GET THE SEAVU 1 ARR TO LOAD AND HAD TO BUILD IT BY HAND ONE WAYPOINT AT A TIME. THIS KEPT MY HEAD DOWN IN THE BOX FOR A LONG TIME; JUST KEEPING UP WITH CROSSING RESTRICTIONS. ATC ASKED IF WE HAD INTERCEPTED THE RWY 24R LOC. I SAID YES. ATC TOLD US TO FLY HDG 270 AND INTERCEPT THE RWY 24R LOC. AT THAT TIME I KNEW WHAT WAS WRONG AND FLIPPED THE RWY 24R LOC FREQ UP AND WE INTERCEPTED AND FLEW THE ILS AND LANDED. ATC NEVER ASKED US TO CALL THEM AFTER LNDG. TO PREVENT A REOCCURRENCE; I WOULD SUGGEST THE FOLLOWING: 1) NEVER HAVE TWO APCH PLATES OUT AT THE SAME TIME TO PARALLEL RWYS. 2) ADVISE ATC IF YOU NEED MORE TIME TO LOAD A NEW ARR. 3) VERIFY AND IDENTIFY YOUR LOC.

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.