Narrative:

On the skebr 1 arrival, just prior to passing misen at FL240, captain put in the new runway assignment for las. When he did this, the box dumped the rest of the arrival, so I had no navigation waypoints after misen. By this time we were descending through FL235, cleared to 13000 ft at clarr. Captain queried approach control for direct las VOR and approach asked if we had a problem. We answered no, and the controller told us to stay on the skebr 1. While this was going on I had already put the next 2 waypoints back in the box by hand (attempts to load the arrival on the departure/arrival page had failed, no reason why), so we had navigation through skebr waypoint. We continued the descent, and I finished loading the rest of the arrival by hand. At ipumy on the skebr 1, we started a left turn to husol, with the frantic loading of the box by hand while monitoring descent and speed, I had loaded the arrival points to runway 25R instead of runway 25L. At this point, the controller gave us a frantic vector for an immediate right turn to heading 110 degrees. We complied, and were vectored for the remainder of the approach. It is unknown why the rest of the arrival dropped out of the box when putting in a new runway, but it was the principal factor in this problem. Additionally, this arrival is way too complex, with 13 different waypoints depicted and different tracks for each. Supplemental information from acn 553750: problem began when we were given a runway change. We were originally looking to land on runway 1R with the kasino arrival. When we put in the new runway (runway 25L), the arrival dumped from the FMC. The first officer scrambled to put all of the fixes back into the FMC for the arrival and in the process, put in the arrival fixes for runway 25R instead of runway 25L. When we made a turn to the left instead of a turn to the right at the fork in the road, approach got all excited and asked us where we were going. They seemed to want to argue about it rather than get us pointed in the right direction. They finally gave us a heading toward boulder city VOR and a left downwind for runway 25L. We got lined up , they gave us a visual, and we landed. There are more numerous problems going on in las. First, we were the only aircraft within 40 mi and the complexity of the arrival procedures. In fact, when we first arrived in the area, I asked for direct las and we were denied and they asked 'do you have a problem?' I said no, and they said to fly the skebr arrival. One of the major problems was the confrontational attitude of the controllers. The second was the problem with the FMC dumping the arrival when we put in the new runway which created much confusion, and the third is the complexity of the arrival process for this airport. Totally unnecessary. Please call me and I can describe in greater detail. This place is a real problem.

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Original NASA ASRS Text

Title: B767 CREW ON APCH TO LAS LOST PROGRAMMED DATA FOR THE SKEBR 1 ARR TO RWY 25R.

Narrative: ON THE SKEBR 1 ARR, JUST PRIOR TO PASSING MISEN AT FL240, CAPT PUT IN THE NEW RWY ASSIGNMENT FOR LAS. WHEN HE DID THIS, THE BOX DUMPED THE REST OF THE ARR, SO I HAD NO NAV WAYPOINTS AFTER MISEN. BY THIS TIME WE WERE DSNDING THROUGH FL235, CLRED TO 13000 FT AT CLARR. CAPT QUERIED APCH CTL FOR DIRECT LAS VOR AND APCH ASKED IF WE HAD A PROB. WE ANSWERED NO, AND THE CTLR TOLD US TO STAY ON THE SKEBR 1. WHILE THIS WAS GOING ON I HAD ALREADY PUT THE NEXT 2 WAYPOINTS BACK IN THE BOX BY HAND (ATTEMPTS TO LOAD THE ARR ON THE DEP/ARR PAGE HAD FAILED, NO REASON WHY), SO WE HAD NAV THROUGH SKEBR WAYPOINT. WE CONTINUED THE DSCNT, AND I FINISHED LOADING THE REST OF THE ARR BY HAND. AT IPUMY ON THE SKEBR 1, WE STARTED A L TURN TO HUSOL, WITH THE FRANTIC LOADING OF THE BOX BY HAND WHILE MONITORING DSCNT AND SPD, I HAD LOADED THE ARR POINTS TO RWY 25R INSTEAD OF RWY 25L. AT THIS POINT, THE CTLR GAVE US A FRANTIC VECTOR FOR AN IMMEDIATE R TURN TO HDG 110 DEGS. WE COMPLIED, AND WERE VECTORED FOR THE REMAINDER OF THE APCH. IT IS UNKNOWN WHY THE REST OF THE ARR DROPPED OUT OF THE BOX WHEN PUTTING IN A NEW RWY, BUT IT WAS THE PRINCIPAL FACTOR IN THIS PROB. ADDITIONALLY, THIS ARR IS WAY TOO COMPLEX, WITH 13 DIFFERENT WAYPOINTS DEPICTED AND DIFFERENT TRACKS FOR EACH. SUPPLEMENTAL INFO FROM ACN 553750: PROB BEGAN WHEN WE WERE GIVEN A RWY CHANGE. WE WERE ORIGINALLY LOOKING TO LAND ON RWY 1R WITH THE KASINO ARR. WHEN WE PUT IN THE NEW RWY (RWY 25L), THE ARR DUMPED FROM THE FMC. THE FO SCRAMBLED TO PUT ALL OF THE FIXES BACK INTO THE FMC FOR THE ARR AND IN THE PROCESS, PUT IN THE ARR FIXES FOR RWY 25R INSTEAD OF RWY 25L. WHEN WE MADE A TURN TO THE L INSTEAD OF A TURN TO THE R AT THE FORK IN THE ROAD, APCH GOT ALL EXCITED AND ASKED US WHERE WE WERE GOING. THEY SEEMED TO WANT TO ARGUE ABOUT IT RATHER THAN GET US POINTED IN THE RIGHT DIRECTION. THEY FINALLY GAVE US A HDG TOWARD BOULDER CITY VOR AND A L DOWNWIND FOR RWY 25L. WE GOT LINED UP , THEY GAVE US A VISUAL, AND WE LANDED. THERE ARE MORE NUMEROUS PROBS GOING ON IN LAS. FIRST, WE WERE THE ONLY ACFT WITHIN 40 MI AND THE COMPLEXITY OF THE ARR PROCS. IN FACT, WHEN WE FIRST ARRIVED IN THE AREA, I ASKED FOR DIRECT LAS AND WE WERE DENIED AND THEY ASKED 'DO YOU HAVE A PROB?' I SAID NO, AND THEY SAID TO FLY THE SKEBR ARR. ONE OF THE MAJOR PROBS WAS THE CONFRONTATIONAL ATTITUDE OF THE CTLRS. THE SECOND WAS THE PROB WITH THE FMC DUMPING THE ARR WHEN WE PUT IN THE NEW RWY WHICH CREATED MUCH CONFUSION, AND THE THIRD IS THE COMPLEXITY OF THE ARR PROCESS FOR THIS ARPT. TOTALLY UNNECESSARY. PLEASE CALL ME AND I CAN DESCRIBE IN GREATER DETAIL. THIS PLACE IS A REAL PROB.

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.