Narrative:

Holding short of runway 25R at taxiway M; after landing runway 25L; ATC issued a clearance of 'air carrier X continue.' we assumed the clearance was for us to cross runway 25R at taxiway M; and crossed the hold short line by a few ft. ATC issued another clearance of 'air carrier X stop.' we stopped the aircraft; while a turboprop commuter began his takeoff roll. The nose of our aircraft was a few ft beyond the hold short line when the turboprop was airborne off runway 25R.

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Original NASA ASRS Text

Title: A319 LNDG LAX ON RWY 25L; HEARD ATC CLR ACFT TO CROSS RWY; ASSUMED CLRNC WAS FOR THEIR ACFT; BUT THEN ATC ISSUED IMMEDIATE HOLD CLRNC.

Narrative: HOLDING SHORT OF RWY 25R AT TXWY M; AFTER LNDG RWY 25L; ATC ISSUED A CLRNC OF 'ACR X CONTINUE.' WE ASSUMED THE CLRNC WAS FOR US TO CROSS RWY 25R AT TXWY M; AND CROSSED THE HOLD SHORT LINE BY A FEW FT. ATC ISSUED ANOTHER CLRNC OF 'ACR X STOP.' WE STOPPED THE ACFT; WHILE A TURBOPROP COMMUTER BEGAN HIS TKOF ROLL. THE NOSE OF OUR ACFT WAS A FEW FT BEYOND THE HOLD SHORT LINE WHEN THE TURBOPROP WAS AIRBORNE OFF RWY 25R.

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.