Narrative:

While on right downwind with student cleared for touch-and-go on runway 31L, was advised gulfstream would depart prior. Gulfstream was then cleared for takeoff and advised cherokee turning final. Obvious that giii pilots did not look out the window and pulled onto runway while we were on short final. I announced immediate go around and we climbed steeply. Controller advised us to 'make a left 360 degree turn' and enter left downwind.' controller was very busy and possibly a trainee. Never cautioned us about wake turbulence from departing giii on our touch-and-go. Subsequent touch-and-go had a B737 on 1/2 mi final to runway 6. We were advised and hurried to get clear. Observations: 1) controllers were overloaded (we heard 3 separate voices). 2) controller judgement not the greatest. 3) we were watching, so never any danger. 4) all my students are taught to look out the window before entering any runway. Cpr pilots in giii got sloppy and relied solely on controller's instructions. 5) multiple runway operations.

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Original NASA ASRS Text

Title: RWY INCURSION WHEN A PA28-140 CHEROKEE CFI AND STUDENT HAVE A CRITICAL GND CONFLICT WITH A GIII ENTERING THE ACTIVE RWY WHICH WAS AVOIDED BY A GAR FROM A SHORT FINAL APCH TO RWY 31 AT ABE, PA.

Narrative: WHILE ON R DOWNWIND WITH STUDENT CLRED FOR TOUCH-AND-GO ON RWY 31L, WAS ADVISED GULFSTREAM WOULD DEPART PRIOR. GULFSTREAM WAS THEN CLRED FOR TKOF AND ADVISED CHEROKEE TURNING FINAL. OBVIOUS THAT GIII PLTS DID NOT LOOK OUT THE WINDOW AND PULLED ONTO RWY WHILE WE WERE ON SHORT FINAL. I ANNOUNCED IMMEDIATE GAR AND WE CLBED STEEPLY. CTLR ADVISED US TO 'MAKE A L 360 DEG TURN' AND ENTER L DOWNWIND.' CTLR WAS VERY BUSY AND POSSIBLY A TRAINEE. NEVER CAUTIONED US ABOUT WAKE TURB FROM DEPARTING GIII ON OUR TOUCH-AND-GO. SUBSEQUENT TOUCH-AND-GO HAD A B737 ON 1/2 MI FINAL TO RWY 6. WE WERE ADVISED AND HURRIED TO GET CLR. OBSERVATIONS: 1) CTLRS WERE OVERLOADED (WE HEARD 3 SEPARATE VOICES). 2) CTLR JUDGEMENT NOT THE GREATEST. 3) WE WERE WATCHING, SO NEVER ANY DANGER. 4) ALL MY STUDENTS ARE TAUGHT TO LOOK OUT THE WINDOW BEFORE ENTERING ANY RWY. CPR PLTS IN GIII GOT SLOPPY AND RELIED SOLELY ON CTLR'S INSTRUCTIONS. 5) MULTIPLE RWY OPS.

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.