Narrative:

On the above stated data and time I was with a student. Upon reaching the runway he contacted phx tower and informed them we were holding short of runway 8L and ready for departure. They said be 'ready for an immediate departure.' at this time an medium large transport air carrier just landed about 2000-2500 ft ahead of us and another medium large transport jet was on approximately 5-7 mi final. I saw the traffic and was told by the tower 'cleared for takeoff.' we started our takeoff roll down the runway, but not at full power (about 1/2 power) since we needed to takeoff past the point where the medium large transport aircraft 2000 ft down runway landed. Our small aircraft sel takes off at full power in approximately 700-1000 ft. Suddenly at about 1500- 2000 ft down the runway the controller said why we hadn't lifted off yet and then to immediately turn 20 degrees left, that there was a large jet about to land. Upon being airborne we turned left. We were told to contact the tower by phone at our destination. Key notes: we were never cleared for an immediate takeoff only to be ready. We were never told where the other traffic was (i.e., 1 mi final) and we were not given much room to avoid the wake turbulence of the preceding landing aircraft. I realize big airliners may need some more priority because of the number of people involved and dollars, but I think a controller whose spacing plans didn't work out right is better than 2 people getting killed because they didn't avoid wake turbulence!

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Original NASA ASRS Text

Title: INSTRUCTOR TRAINEE OF SMA SEL ACFT INADVERTENTLY DELAYED TKOF CAUSING TWR CTLR TO EXPEDITE SEPARATION BY DIRECTING AN IMMEDIATE TURN AFTER TKOF FOR LNDG ACR JET TFC.

Narrative: ON THE ABOVE STATED DATA AND TIME I WAS WITH A STUDENT. UPON REACHING THE RWY HE CONTACTED PHX TWR AND INFORMED THEM WE WERE HOLDING SHORT OF RWY 8L AND READY FOR DEP. THEY SAID BE 'READY FOR AN IMMEDIATE DEP.' AT THIS TIME AN MLG ACR JUST LANDED ABOUT 2000-2500 FT AHEAD OF US AND ANOTHER MLG JET WAS ON APPROX 5-7 MI FINAL. I SAW THE TFC AND WAS TOLD BY THE TWR 'CLRED FOR TKOF.' WE STARTED OUR TKOF ROLL DOWN THE RWY, BUT NOT AT FULL PWR (ABOUT 1/2 PWR) SINCE WE NEEDED TO TKOF PAST THE POINT WHERE THE MLG ACFT 2000 FT DOWN RWY LANDED. OUR SMA SEL TAKES OFF AT FULL PWR IN APPROX 700-1000 FT. SUDDENLY AT ABOUT 1500- 2000 FT DOWN THE RWY THE CTLR SAID WHY WE HADN'T LIFTED OFF YET AND THEN TO IMMEDIATELY TURN 20 DEGS L, THAT THERE WAS A LARGE JET ABOUT TO LAND. UPON BEING AIRBORNE WE TURNED L. WE WERE TOLD TO CONTACT THE TWR BY PHONE AT OUR DEST. KEY NOTES: WE WERE NEVER CLRED FOR AN IMMEDIATE TKOF ONLY TO BE READY. WE WERE NEVER TOLD WHERE THE OTHER TFC WAS (I.E., 1 MI FINAL) AND WE WERE NOT GIVEN MUCH ROOM TO AVOID THE WAKE TURB OF THE PRECEDING LNDG ACFT. I REALIZE BIG AIRLINERS MAY NEED SOME MORE PRIORITY BECAUSE OF THE NUMBER OF PEOPLE INVOLVED AND DOLLARS, BUT I THINK A CTLR WHOSE SPACING PLANS DIDN'T WORK OUT RIGHT IS BETTER THAN 2 PEOPLE GETTING KILLED BECAUSE THEY DIDN'T AVOID WAKE TURB!

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.