THE L BRAKE OF A DA20 LOCKED ON LNDG.

Narrative

I WAS GIVING FLT INSTRUCTION ON TFC PATTERN WORK AND NORMAL LNDG OPS. MY STUDENT WAS SETTING UP FOR THE LNDG AND I AS A FLT INSTRUCTOR WAS TALKING HIM THROUGH ON THE SETUPS. HE DID THE ENTIRE PRE-LNDG CHKLIST AND SETUP WHILE I DOUBLE-CHKED HIS WORK. THE STUDENT WAS ON HIS APCH SPD AND ALTS FOR ALL PARTS OF THE TFC PATTERN (UPWIND; XWIND; DOWNWIND; BASE; AND FINAL). ON FINAL HE WAS AT 60 KTS RECOMMENDED APCH SPD FOR THIS SPECIFIC ACFT AND ALSO STABILIZED FOR THE APCH. AT TOUCHDOWN; HE WAS ON THE CTLS AND I WAS PREPARED TO TAKE OVER IF NEEDED. HE LANDED THE ACFT AND; AS WE TOUCHED DOWN; I FELT THE BRAKES LOCK UP. I ASKED; 'ARE YOU ON THE BRAKES;' HE ANSWERED; 'I AM NOT ON THE BRAKES.' I TOO WAS NOT ON THE BRAKES AT THIS TIME. AS THE ACFT START PULLING TOWARDS THE L; HE AND I STARTED TO APPLY R RUDDER TO KEEP IT ON CTRLINE AND WITHIN A COUPLE HUNDRED FEET THE PLANE CAME TO A STOP JUST L OFF THE RWY CTRLINE. TWR NOTIFIED THAT HE OBSERVED SOME SMOKE COMING FROM OUR LNDG GEAR WHEN WE TOUCHED DOWN. I NOTICED THAT WE WERE ALSO TILTED TO THE L. I ADVISED MY STUDENT TO SHUTDOWN THE ACFT WHILE I MADE RADIO CALLS TO THE LCL FBO TO SEE IF THEY CAN TOW US OFF THE RWY. ONCE WE HAD THE ACFT SHUTDOWN AND SECURED; HE AND I STEPPED OUT OF THE ACFT TO CHK ON THE ACFT. WE FOUND OUT WE HAD A BLOWN L TIRE. BY THIS TIME THE FBO LINE GUYS WERE OUT THERE PREPARING TO GET US TOWED OFF THE RWY. THE ACFT WAS TOWED BACK TO THE RAMP AND NO ONE WAS INJURED.