Narrative:

Normal taxi out to runway 31C at mdw. Company aircraft departed ahead of us. Tower called us, told to 'taxi into position and hold,' but used 'abcx' instead of 'abcy' flight number. I read back entire clearance with 'abcy' emphasized, which was responded by him with an informal 'ok' or 'that's right.' we did below the line and as we taxied into position, looked up to see company on short final and the controller saying to us 'exit the runway' and told company to go around. The captain smoothly kept the turnout onto the runway as a turn off the runway with no sudden power changes or tiller movement. Shortly thereafter, we received takeoff clearance. Normal takeoff performed. As we climbed out, tower switched us to departure and said something like 'no problem' or 'don't worry about what happened earlier' before handing us over to departure. I could have checked final to be clear of traffic before reading the checklist in hand, below the line portion. Lesson learned: look, see and avoid -- as taught 15+ yrs ago. Supplemental information from acn 511687: my first officer very clearly repeated the clearance to position and hold slowly saying our call sign. After crossing the hold short line, but not on the runway, we were told to clear the runway, which we did by executing a quick 180 degree turn. We were reclred onto the runway and proceeded without incident.

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Original NASA ASRS Text

Title: MDW LCL CTLR ISSUES 'EXIT RWY' AFTER B733 FLC RECEIVES POS AND HOLD CLRNC DUE TO TFC ON SHORT FINAL.

Narrative: NORMAL TAXI OUT TO RWY 31C AT MDW. COMPANY ACFT DEPARTED AHEAD OF US. TWR CALLED US, TOLD TO 'TAXI INTO POS AND HOLD,' BUT USED 'ABCX' INSTEAD OF 'ABCY' FLT NUMBER. I READ BACK ENTIRE CLRNC WITH 'ABCY' EMPHASIZED, WHICH WAS RESPONDED BY HIM WITH AN INFORMAL 'OK' OR 'THAT'S RIGHT.' WE DID BELOW THE LINE AND AS WE TAXIED INTO POS, LOOKED UP TO SEE COMPANY ON SHORT FINAL AND THE CTLR SAYING TO US 'EXIT THE RWY' AND TOLD COMPANY TO GO AROUND. THE CAPT SMOOTHLY KEPT THE TURNOUT ONTO THE RWY AS A TURN OFF THE RWY WITH NO SUDDEN PWR CHANGES OR TILLER MOVEMENT. SHORTLY THEREAFTER, WE RECEIVED TKOF CLRNC. NORMAL TKOF PERFORMED. AS WE CLBED OUT, TWR SWITCHED US TO DEP AND SAID SOMETHING LIKE 'NO PROB' OR 'DON'T WORRY ABOUT WHAT HAPPENED EARLIER' BEFORE HANDING US OVER TO DEP. I COULD HAVE CHKED FINAL TO BE CLR OF TFC BEFORE READING THE CHKLIST IN HAND, BELOW THE LINE PORTION. LESSON LEARNED: LOOK, SEE AND AVOID -- AS TAUGHT 15+ YRS AGO. SUPPLEMENTAL INFO FROM ACN 511687: MY FO VERY CLRLY REPEATED THE CLRNC TO POS AND HOLD SLOWLY SAYING OUR CALL SIGN. AFTER XING THE HOLD SHORT LINE, BUT NOT ON THE RWY, WE WERE TOLD TO CLR THE RWY, WHICH WE DID BY EXECUTING A QUICK 180 DEG TURN. WE WERE RECLRED ONTO THE RWY AND PROCEEDED WITHOUT INCIDENT.

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.