Narrative:

While working local 2 and 3 combined at las vegas tower; runway 7's and 19's in use (confign #6); ground control west had coordinated a B350 to cross runway 19R/left at taxiway north; which I had approved his request after a beech 1900 landed runway 19L. Simultaneously; local assist #1 had informed of a learjet that seem to be lined up for the wrong runway. Seconds later I canceled the crossing at taxiway north with ground control west. The learjet was issued instructions by local 1 to land runway 7R; but continued inbound for runway 1R. The tower supervisor advised local 1 to let the learjet land on runway 1R as the beech 1900 exited taxiway V.

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Original NASA ASRS Text

Title: LAS LCL CTLR DESCRIBED NEAR LOSS OF SEPARATION WHEN SUPVR DIRECTED CTLR TO ALLOW ACFT TO LAND ON WRONG RWY RESULTING IN CLOSE CALL.

Narrative: WHILE WORKING LCL 2 AND 3 COMBINED AT LAS VEGAS TWR; RWY 7'S AND 19'S IN USE (CONFIGN #6); GND CTL W HAD COORDINATED A B350 TO CROSS RWY 19R/L AT TXWY N; WHICH I HAD APPROVED HIS REQUEST AFTER A BEECH 1900 LANDED RWY 19L. SIMULTANEOUSLY; LCL ASSIST #1 HAD INFORMED OF A LEARJET THAT SEEM TO BE LINED UP FOR THE WRONG RWY. SECONDS LATER I CANCELED THE XING AT TXWY N WITH GND CTL W. THE LEARJET WAS ISSUED INSTRUCTIONS BY LCL 1 TO LAND RWY 7R; BUT CONTINUED INBOUND FOR RWY 1R. THE TWR SUPVR ADVISED LCL 1 TO LET THE LEARJET LAND ON RWY 1R AS THE BEECH 1900 EXITED TXWY V.

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.