P28 ABORTS AT DVT RESULTING IN ADDITIONAL ABORT AND GAR.

Narrative

AFTER FLYING IN THE PATTERN FOR A TOUCH AND GO; WE WERE ON FINAL TO CONDUCT A SIMULATED SHORT-FIELD LNDG. MY STUDENT TOUCHED DOWN ON THE FIRST CTRLINE STRIPE AFTER THE NUMBERS AND THEN CLEANED UP THE AIRPLANE AND APPLIED PWR FOR A TKOF. AS SOON AS MY STUDENT HAD APPLIED TKOF PWR WE NOTICED A JET WHO WAS TAXIING FROM OUR L TO R ON WHAT APPEARED TO BE B5. THE JET LOOKED LIKE IT WAS GOING TO CROSS THE RWY AT B5. TO PREVENT A HAZARD MY STUDENT IMMEDIATELY PULLED BACK THE THROTTLE AND ABORTED THE TKOF. MY STUDENT ABORTED THE TKOF AT 45 KIAS PRIOR TO XING THE INTERSECTING TXWY B9. I IMMEDIATELY CALLED THE TWR PRIOR TO XING TXWY B9 AND REQUESTED A FULL STOP LNDG. AFTER MY RADIO CALL; THE TWR IMMEDIATELY TOLD THE CESSNA WHO WAS ALREADY CLRED FOR TKOF TO ABORT THE TKOF AND ALSO FOR THE KING AIR WHO WAS ON VERY SHORT FINAL TO GO AROUND. WE EXPEDITED OUR TAXI TO EXIT THE RWY ON B5 AND WHEN REQUESTED TO CONTACT GND CTL ON 121.8; I COMPLIED WITH THE TWR. I TOLD THE CTLR THAT WE HAD TO MAKE A FULL STOP BECAUSE OF A JET XING THE RWY. ONCE ON WITH GND CTL; I WAS ASKED IF THERE WAS AN INSTRUCTOR ON BOARD. I THEN TOLD HIM THAT I WAS THE INSTRUCTOR. THEN HE GAVE US TAXI INSTRUCTIONS WHICH WERE TO TAXI UP AND HOLD SHORT OF RWY 25L AND TO CONTACT THE TWR BY PHONE ONCE WE WERE BACK TO OUR FLT ACADEMY. I BELIEVE THAT THIS SIT COULD HAVE BEEN AVOIDED IF THE AIR TFC CTLR WOULD HAVE GIVEN MORE THAN JUST A FEW SECONDS OF SPACING BTWN THE LNDG AND DEPARTING ACFT ON THE RWY. EVEN THOUGH THE CTLR WAS TRYING TO GET THE CESSNA OFF BEFORE THE FAST APCHING KING AIR ON SHORT FINAL; FOR SAFETY REASONS HE SHOULD HAVE AT LEAST WAITED UNTIL OUR PIPER ARCHER HAD LIFTED OFF. THERE SHOULD ALSO BE A RULE THAT AROUND THE TIME OF SUNSET ATC SHOULD WARN PLTS LNDG ON RWY 25R OF TFC XING ON THE INDUSTRIAL PARK TXWY. THIS WOULD ELIMINATE THE RISK OF PLTS THINKING THAT THEIR ACTIVE RWY IS NOT CLR OF HAZARD. THE SPACING WOULD HAVE BEEN SAFE IF THE CTLR WOULD HAVE RELEASED THE CESSNA AFTER THE KING AIR HAD LANDED INSTEAD OF TRYING TO SQUEEZE THE CESSNA INBTWN WHILE THE PIPER ARCHER WAS JUST AHEAD ON THE RWY STILL CONDUCTING THE TKOF ROLL. AS AN INSTRUCTOR; I TEACH MY STUDENTS TO ABORT TKOFS IF THEY FEEL THAT THE TKOF WILL BE HAZARDOUS. IN THIS SIT; MY STUDENT MADE THE DECISION TO ABORT THE TKOF DUE TO WHAT WE THOUGHT WAS A SURE COLLISION. I AM IN THE PROCESS OF DOING MY RESEARCH ON TKOF SPACING GIVEN BY AIR TFC CTLRS; BUT FROM TALKING TO MY CHIEF PLT; OTHER AIR TFC CTLRS AND INSTRUCTORS AT OUR FLT ACADEMY; WE AGREED THAT THE AIR TFC CTLR IN THE TWR HAS TO AT LEAST WAIT UNTIL A DEPARTING ACFT IS 3000 FT DOWN THE RWY AND FOR THAT ACFT TO AT LEAST BECOME AIRBORNE ON DEP BEFORE ALLOWING ANOTHER ACFT TO TAKE OFF BEHIND IT. THIS WAS NOT THE CASE ON WED. THE AIR TFC CTLR CLRED THE CESSNA FOR TKOF WELL BEFORE WE WERE GOING TO ROTATE; AND MY STUDENT AND I MADE THE CONSERVATIVE AND SAFE DECISION TO NOT CONTINUE THE TKOF TO AVOID THE RISK AND POSSIBILITY OF NOT CLRING THE JET SAFELY.