B737-700 CREW RPTED A SWERVE ON TKOF ROLL AT DFW WAS DUE TO A XWIND GUST OR JET BLAST.

Narrative

UNCOMMANDED SWERVE ON TKOF. ON THE TKOF ROLL AROUND 100 KTS THE ACFT SWERVED SLIGHTLY R. THE SIDE LOAD PLACED ON THE TIRES MADE A SOUND THAT SOUNDED LIKE A POSSIBLE TIRE FAILURE. A SCAN OF ALL ENG INSTRUMENTS INDICATED THEY WERE NORMAL. AS THE ACFT STRAIGHTENED UP AND CONTINUED DOWN THE RWY ALL INDICATIONS AND SOUNDS RETURNED TO NORMAL. A NORMAL TKOF AND CLB TO CRUISE ALT FOLLOWED. ONCE AT CRUISE ALT A REVIEW OF THE ACFT LOGBOOK REVEALED A WRITE-UP FROM DAYS BEFORE THAT THE TREAD ON THE R MAIN GEAR TIRE WAS LOW AND REQUIRED INSPECTION. THIS WAS SIGNED OFF AS WITHIN LIMITS. TAKING THESE TWO TOGETHER; I CONCLUDED IT WOULD BE A GOOD IDEA TO HAVE DISPATCH CONTACT DFW AND REQUEST THEY INSPECT THE RWY FOR POSSIBLE TIRE FOD. I ALSO REQUESTED THAT ARFF MEET THE ACFT UPON LNDG AT OUR DEST. AFTER LNDG WE STOPPED THE ACFT ON THE RWY WHILE ARFF PERSONNEL INSPECTED THE TIRES. NO DAMAGE WAS FOUND AND WE TAXIED TO THE GATE. A POST FLT INSPECTION DID NOT REVEAL ANY TIRE DAMAGE OR OTHER POSSIBLE CAUSE FOR THE SWERVE. CONCLUSION; A XWIND GUST OR POSSIBLE JET-BLAST CAUSED THE TEMPORARY SWERVE DURING TKOF.