Narrative:

Flying IFR from koun to klas, we were told by los angeles center to expect runway 19R for approach and landing. Assigned to the lynsey RNAV one arrival, we planned for the runway 19R transition. Approximately 30 seconds before the mirock intersection, las vegas approach control instructs us to fly the runway 25L transition. We did not have enough time to program in the next fix for that transition upon arriving at mirock. We approximated our heading to utare intersection. Promptly after arriving at mirock, ATC informed us that we were off course. We informed them that we would need a vector. Although the arrival procedure defaults to the runway 25L transition the crew believes two factors contributed to the deviation. These are: 1) previous center communication to expect the runway 19R arrival. 2) las vegas approach informing us 30 seconds prior to reaching the crucial fix. No evasive action was needed, no traffic conflicts arose, and no airspace was violated. A normal approach to lnd was made. Upon arrival, las vegas ground asked us to call the supervisor. The supervisor was contacted and the conversation started with a great deal of hostility and sarcasm from him. He accused the crew of laughing on frequency and that 'he had a big joke for us!' I can, without any doubt, say that there was absolutely no laughing or inappropriate radio communication of any sort. We were carrying passengers at the time and often background noise can be heard over the radio. That is the only possible explanation I can think of. The supervisor also informed myself that they have had many deviations on this route and that they were getting tired of it.

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Original NASA ASRS Text

Title: BE40 INBOUND TO LAS ARE ADVISED BY ARTCC TO EXPECT RWY 19R BUT ARE ISSUED RWY 25L BY THE APCH CTLR.

Narrative: FLYING IFR FROM KOUN TO KLAS, WE WERE TOLD BY LOS ANGELES CENTER TO EXPECT RWY 19R FOR APCH AND LNDG. ASSIGNED TO THE LYNSEY RNAV ONE ARR, WE PLANNED FOR THE RWY 19R TRANSITION. APPROX 30 SECS BEFORE THE MIROCK INTXN, LAS VEGAS APCH CTL INSTRUCTS US TO FLY THE RWY 25L TRANSITION. WE DID NOT HAVE ENOUGH TIME TO PROGRAM IN THE NEXT FIX FOR THAT TRANSITION UPON ARRIVING AT MIROCK. WE APPROXIMATED OUR HEADING TO UTARE INTXN. PROMPTLY AFTER ARRIVING AT MIROCK, ATC INFORMED US THAT WE WERE OFF COURSE. WE INFORMED THEM THAT WE WOULD NEED A VECTOR. ALTHOUGH THE ARR PROC DEFAULTS TO THE RWY 25L TRANSITION THE CREW BELIEVES TWO FACTORS CONTRIBUTED TO THE DEVIATION. THESE ARE: 1) PREVIOUS CENTER COM TO EXPECT THE RWY 19R ARR. 2) LAS VEGAS APCH INFORMING US 30 SECS PRIOR TO REACHING THE CRUCIAL FIX. NO EVASIVE ACTION WAS NEEDED, NO TFC CONFLICTS AROSE, AND NO AIRSPACE WAS VIOLATED. A NORMAL APCH TO LND WAS MADE. UPON ARR, LAS VEGAS GND ASKED US TO CALL THE SUPVR. THE SUPVR WAS CONTACTED AND THE CONVERSATION STARTED WITH A GREAT DEAL OF HOSTILITY AND SARCASM FROM HIM. HE ACCUSED THE CREW OF LAUGHING ON FREQ AND THAT 'HE HAD A BIG JOKE FOR US!' I CAN, WITHOUT ANY DOUBT, SAY THAT THERE WAS ABSOLUTELY NO LAUGHING OR INAPPROPRIATE RADIO COM OF ANY SORT. WE WERE CARRYING PASSENGERS AT THE TIME AND OFTEN BACKGROUND NOISE CAN BE HEARD OVER THE RADIO. THAT IS THE ONLY POSSIBLE EXPLANATION I CAN THINK OF. THE SUPVR ALSO INFORMED MYSELF THAT THEY HAVE HAD MANY DEVIATIONS ON THIS RTE AND THAT THEY WERE GETTING TIRED OF IT.

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.