Narrative:

WX conditions in la were good visibility 8 mi with light wind. We flew the civit 4 arrival and landed on runway 25L. We exited at taxiway microphone and held short of runway 25R. We sat with the parking brake on for 2 to 3 mins. One aircraft departed runway 25R as we were hldg. We knew aircraft were continuing to land on runway 25L and would need our taxiway. We did not anticipate much of a delay with receiving a clearance to cross runway 25R. We then heard tower call us by our call sign followed by a very emphatic and forceful without delay, cross runway 25R, a right turn and something about landing traffic. It was a hurried communication not unusual at lax. The first officer made a very precise readback of clear to cross runway 25R, right turn, air carrier X. I put on all ldg, taxi, strobe, and wing lights and released the brake. We looked to the right at the threshold of runway 25R. We could see an aircraft in position not moving and with no takeoff lights visible. I asked the first officer if it looked good; he responded you're clear. We proceeded to cross runway 25R and continued to confirm that the aircraft in position on runway 25R was not moving. As we were turning off microphone onto bravo, we heard tower cancel takeoff clearance for someone on runway 25R and tell us that we had crossed runway 25R west/O a clearance. We looked back at the threshold of runway 25R and did notice the aircraft we had been watching start to move slowly forward and then turned off to the right at the first available taxiway, we believe foxtrot. We told tower that he had clrd us to cross. He said the communication was for air carrier Y. We proceeded to taxi to gate.

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Original NASA ASRS Text

Title: AN A320 FLC EXPERIENCES A RWY INCURSION AFTER RECEIVING WHAT THEY THOUGHT WAS A CLRNC FOR THEIR FLT NUMBER TO CROSS RWY 25R AT LAX, CA.

Narrative: WX CONDITIONS IN LA WERE GOOD VISIBILITY 8 MI WITH LIGHT WIND. WE FLEW THE CIVIT 4 ARR AND LANDED ON RWY 25L. WE EXITED AT TXWY MIKE AND HELD SHORT OF RWY 25R. WE SAT WITH THE PARKING BRAKE ON FOR 2 TO 3 MINS. ONE ACFT DEPARTED RWY 25R AS WE WERE HLDG. WE KNEW ACFT WERE CONTINUING TO LAND ON RWY 25L AND WOULD NEED OUR TXWY. WE DID NOT ANTICIPATE MUCH OF A DELAY WITH RECEIVING A CLRNC TO CROSS RWY 25R. WE THEN HEARD TWR CALL US BY OUR CALL SIGN FOLLOWED BY A VERY EMPHATIC AND FORCEFUL WITHOUT DELAY, CROSS RWY 25R, A R TURN AND SOMETHING ABOUT LNDG TFC. IT WAS A HURRIED COM NOT UNUSUAL AT LAX. THE FO MADE A VERY PRECISE READBACK OF CLR TO CROSS RWY 25R, R TURN, ACR X. I PUT ON ALL LDG, TAXI, STROBE, AND WING LIGHTS AND RELEASED THE BRAKE. WE LOOKED TO THE R AT THE THRESHOLD OF RWY 25R. WE COULD SEE AN ACFT IN POS NOT MOVING AND WITH NO TKOF LIGHTS VISIBLE. I ASKED THE FO IF IT LOOKED GOOD; HE RESPONDED YOU'RE CLR. WE PROCEEDED TO CROSS RWY 25R AND CONTINUED TO CONFIRM THAT THE ACFT IN POS ON RWY 25R WAS NOT MOVING. AS WE WERE TURNING OFF MIKE ONTO BRAVO, WE HEARD TWR CANCEL TKOF CLRNC FOR SOMEONE ON RWY 25R AND TELL US THAT WE HAD CROSSED RWY 25R W/O A CLRNC. WE LOOKED BACK AT THE THRESHOLD OF RWY 25R AND DID NOTICE THE ACFT WE HAD BEEN WATCHING START TO MOVE SLOWLY FORWARD AND THEN TURNED OFF TO THE R AT THE FIRST AVAILABLE TXWY, WE BELIEVE FOXTROT. WE TOLD TWR THAT HE HAD CLRD US TO CROSS. HE SAID THE COM WAS FOR ACR Y. WE PROCEEDED TO TAXI TO GATE.

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.