Narrative:

A takeoff was initiated while I was instructing a student. The aircraft was configured for a soft-field takeoff with flaps 25 degrees as called for in the syllabus. A normal clearance to takeoff runway 22L was received and the aircraft was taxied onto the runway while completing the second part before takeoff checklist. A reference to the windsock indicated a left quartering headwind and the callout takeoff was performed as the throttle was smoothly advanced to full. Engine power output was normal and the aircraft accelerated as expected. As speed built; the nosewheel left the ground as expected. Shortly after; the aircraft began to yaw left and become airborne into ground effect. I coached the student to increase right rudder by repeating into the intercom right rudder. At that point; the aircraft banked to the right and began settling back toward the runway moving toward the right side of the runway. Control of the aircraft then went to me. I attempted to maintain positive control of the aircraft by managing the angle of attack throughout the subsequent bounces (attempting to make ground contact with only the main gear) and recover directional control; however; the airspeed was too low for sustained flight even in ground effect. I attempted also to avoid; unsuccessfully; various airport signs while the aircraft was moving over and along the infield between runway xxl and runway xxr. As the aircraft settled out of a relatively lower bounce and lateral directional control was achieved; I fully closed the throttle and rolled the airplane back onto the runway. I exited the runway at taxi speed at intersection; reported clear to the tower and was instructed to contact ground. Ground control instructed that we exit the taxiway at intersection and shut down where maintenance was waiting. The aircraft was shut down; the 3 occupants (myself included) exited uninjured; and the aircraft was towed to the maintenance hangar.

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Original NASA ASRS Text

Title: INSTRUCTOR PLT AND STUDENT LOSE CONTROL OF PA28 SHORTLY AFTER LIFT OFF WHILE PERFORMING A SIMULATED SOFT FIELD TKOF.

Narrative: A TKOF WAS INITIATED WHILE I WAS INSTRUCTING A STUDENT. THE ACFT WAS CONFIGURED FOR A SOFT-FIELD TKOF WITH FLAPS 25 DEGS AS CALLED FOR IN THE SYLLABUS. A NORMAL CLRNC TO TKOF RWY 22L WAS RECEIVED AND THE ACFT WAS TAXIED ONTO THE RWY WHILE COMPLETING THE SECOND PART BEFORE TKOF CHKLIST. A REF TO THE WINDSOCK INDICATED A L QUARTERING HEADWIND AND THE CALLOUT TKOF WAS PERFORMED AS THE THROTTLE WAS SMOOTHLY ADVANCED TO FULL. ENG PWR OUTPUT WAS NORMAL AND THE ACFT ACCELERATED AS EXPECTED. AS SPD BUILT; THE NOSEWHEEL LEFT THE GND AS EXPECTED. SHORTLY AFTER; THE ACFT BEGAN TO YAW L AND BECOME AIRBORNE INTO GND EFFECT. I COACHED THE STUDENT TO INCREASE R RUDDER BY REPEATING INTO THE INTERCOM R RUDDER. AT THAT POINT; THE ACFT BANKED TO THE R AND BEGAN SETTLING BACK TOWARD THE RWY MOVING TOWARD THE R SIDE OF THE RWY. CTL OF THE ACFT THEN WENT TO ME. I ATTEMPTED TO MAINTAIN POSITIVE CTL OF THE ACFT BY MANAGING THE ANGLE OF ATTACK THROUGHOUT THE SUBSEQUENT BOUNCES (ATTEMPTING TO MAKE GND CONTACT WITH ONLY THE MAIN GEAR) AND RECOVER DIRECTIONAL CTL; HOWEVER; THE AIRSPD WAS TOO LOW FOR SUSTAINED FLT EVEN IN GND EFFECT. I ATTEMPTED ALSO TO AVOID; UNSUCCESSFULLY; VARIOUS ARPT SIGNS WHILE THE ACFT WAS MOVING OVER AND ALONG THE INFIELD BTWN RWY XXL AND RWY XXR. AS THE ACFT SETTLED OUT OF A RELATIVELY LOWER BOUNCE AND LATERAL DIRECTIONAL CTL WAS ACHIEVED; I FULLY CLOSED THE THROTTLE AND ROLLED THE AIRPLANE BACK ONTO THE RWY. I EXITED THE RWY AT TAXI SPD AT INTXN; RPTED CLR TO THE TWR AND WAS INSTRUCTED TO CONTACT GND. GND CTL INSTRUCTED THAT WE EXIT THE TXWY AT INTXN AND SHUT DOWN WHERE MAINT WAS WAITING. THE ACFT WAS SHUT DOWN; THE 3 OCCUPANTS (MYSELF INCLUDED) EXITED UNINJURED; AND THE ACFT WAS TOWED TO THE MAINT HANGAR.

Data retrieved from NASA's ASRS site as of January 2009 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.