Narrative:

I was first officer on air carrier X. After landing at mdw on runway 22L we cleared at the end with a left turn onto taxiway south and stopped heading northeast on taxiway Y where I called ground. Initially there was some confusion as to our position; either ground did not hear the full call sign or I did not say company name with the flight number. After ascertaining our position we were cleared to taxi on Y to hold short of 31C. After reaching the hold short line for 31C the flight was informed that the instructions were to hold short of 31L. No near miss or close encounter resulted from this.

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Original NASA ASRS Text

Title: RWY INCURSION BY ACR.

Narrative: I WAS FO ON ACR X. AFTER LNDG AT MDW ON RWY 22L WE CLRED AT THE END WITH A L TURN ONTO TAXIWAY S AND STOPPED HDG NE ON TAXIWAY Y WHERE I CALLED GND. INITIALLY THERE WAS SOME CONFUSION AS TO OUR POS; EITHER GND DID NOT HEAR THE FULL CALL SIGN OR I DID NOT SAY COMPANY NAME WITH THE FLT NUMBER. AFTER ASCERTAINING OUR POS WE WERE CLRED TO TAXI ON Y TO HOLD SHORT OF 31C. AFTER REACHING THE HOLD SHORT LINE FOR 31C THE FLT WAS INFORMED THAT THE INSTRUCTIONS WERE TO HOLD SHORT OF 31L. NO NEAR MISS OR CLOSE ENCOUNTER RESULTED FROM THIS.

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.