Narrative:

During flight training (takeoffs and lndgs) we received approximately 3 landing clrncs with a 3 min wake turbulence warning. '('North' number) cleared for the option, 3 min wake turbulence warning.' on the last landing we advised we would be departing for caro (78D) after the next landing. On downwind, an medium large transport was on final, we were instructed to extend downwind. My student missed the controllers instruction that she would call our base leg turn. As I made the correction and was explaining what happened, we got the clearance '(small aircraft north number), cleared to land, 3 mins warning for wake turbulence, landing medium large transport.' during approach, the student made minor airspeed/pitch/power control error. On landing roll, I instructed to clean up the aircraft. The student complied but advanced power to takeoff and rotated. Winds were a slight crosswind 30 degrees from runway heading, 10 KTS, and we became airborne in a short distance. It was a misunderstood clearance on the student's and my parts. I should have caught it but I also missed it. I guess I was in the cleared for the option mode clrncs we had received prior to this landing. The controller was a female (trainee). She transmitted something I could not understand. Then the tower supervisor came on and heatedly informed us of our error, instructed us to contact departure. No further discussion was received about the situation en route to 78D (CAR0). No danger was involved in this situation, but I do admit I should have not missed this clearance. Student had headset/push to talk. I had no means of communication except through the student. I just missed the cleared to land as a full stop wait 3 mins until takeoff. I just blew that one.

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Original NASA ASRS Text

Title: DURING A TRAINING FLT IN A SMA ACFT THE STUDENT FAILED TO DELAY TKOF FOR WAKE TURB AS INSTRUCTED BY TWR.

Narrative: DURING FLT TRAINING (TKOFS AND LNDGS) WE RECEIVED APPROX 3 LNDG CLRNCS WITH A 3 MIN WAKE TURB WARNING. '('N' NUMBER) CLRED FOR THE OPTION, 3 MIN WAKE TURB WARNING.' ON THE LAST LNDG WE ADVISED WE WOULD BE DEPARTING FOR CARO (78D) AFTER THE NEXT LNDG. ON DOWNWIND, AN MLG WAS ON FINAL, WE WERE INSTRUCTED TO EXTEND DOWNWIND. MY STUDENT MISSED THE CTLRS INSTRUCTION THAT SHE WOULD CALL OUR BASE LEG TURN. AS I MADE THE CORRECTION AND WAS EXPLAINING WHAT HAPPENED, WE GOT THE CLRNC '(SMA N NUMBER), CLRED TO LAND, 3 MINS WARNING FOR WAKE TURB, LNDG MLG.' DURING APCH, THE STUDENT MADE MINOR AIRSPD/PITCH/PWR CTL ERROR. ON LNDG ROLL, I INSTRUCTED TO CLEAN UP THE ACFT. THE STUDENT COMPLIED BUT ADVANCED PWR TO TKOF AND ROTATED. WINDS WERE A SLIGHT XWIND 30 DEGS FROM RWY HDG, 10 KTS, AND WE BECAME AIRBORNE IN A SHORT DISTANCE. IT WAS A MISUNDERSTOOD CLRNC ON THE STUDENT'S AND MY PARTS. I SHOULD HAVE CAUGHT IT BUT I ALSO MISSED IT. I GUESS I WAS IN THE CLRED FOR THE OPTION MODE CLRNCS WE HAD RECEIVED PRIOR TO THIS LNDG. THE CTLR WAS A FEMALE (TRAINEE). SHE XMITTED SOMETHING I COULD NOT UNDERSTAND. THEN THE TWR SUPVR CAME ON AND HEATEDLY INFORMED US OF OUR ERROR, INSTRUCTED US TO CONTACT DEP. NO FURTHER DISCUSSION WAS RECEIVED ABOUT THE SITUATION ENRTE TO 78D (CAR0). NO DANGER WAS INVOLVED IN THIS SITUATION, BUT I DO ADMIT I SHOULD HAVE NOT MISSED THIS CLRNC. STUDENT HAD HEADSET/PUSH TO TALK. I HAD NO MEANS OF COM EXCEPT THROUGH THE STUDENT. I JUST MISSED THE CLRED TO LAND AS A FULL STOP WAIT 3 MINS UNTIL TKOF. I JUST BLEW THAT ONE.

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.