Narrative:

The dual instructional flight departed 5g9 for a local flight and later returned to the airport to practice takeoffs and lndgs. After the instructor demonstrated 2 crosswind lndgs with the student pilot primarily on the controls for the takeoffs, the instructor elected to have the student on the controls for the next landing with the instructor talking the student through the flare, touchdown, and rollout. Upon touching down at normal speed on the ice-patched 50-ft wide runway, the aircraft drifted right of centerline with a contribution from a 9 KT left crosswind. Attempts by the instructor to correct drift with aileron, rudder, and brakes had little effect and the right main wheel entered a 2 ft high snow drift at the runway edge. The aircraft, traveling approximately 25 KTS, pivoted sharply to the right about the right main wheel, after traveling a few yards. The left main wheel stopped abruptly at the edge of the packed snowdrift with the aircraft momentum sharply pitching the nose down and rolling the left wing down with the right main wheel briefly lifting off the surface. The propeller from the idling engine struck the soft snow and the left wingtip smartly hit the top of the snow drift causing minor damage to the left wing. Reason for mishap: instructor misjudgement and complacency, icy runway, narrow runway, snow. I expected the student to react more quickly to the centerline drift. There was not enough time to react appropriately. How mishap could have been prevented: immediate correction for drift off centerline (greater aileron/rudder inputs). More immediate application of brakes. Add power: initiate 'balked' landing. Add power: left turning tendency to combat drift to right. Flap retraction: more friction on main gear to slow down. Did I learn anything? Yes! I will not be complacent again.

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Original NASA ASRS Text

Title: C172 INSTRUCTOR PLT WITH STUDENT LOSES CTL OF ACFT ON LNDG AND STRIKES SNOW BANK AT 5G9.

Narrative: THE DUAL INSTRUCTIONAL FLT DEPARTED 5G9 FOR A LCL FLT AND LATER RETURNED TO THE ARPT TO PRACTICE TKOFS AND LNDGS. AFTER THE INSTRUCTOR DEMONSTRATED 2 XWIND LNDGS WITH THE STUDENT PLT PRIMARILY ON THE CTLS FOR THE TKOFS, THE INSTRUCTOR ELECTED TO HAVE THE STUDENT ON THE CTLS FOR THE NEXT LNDG WITH THE INSTRUCTOR TALKING THE STUDENT THROUGH THE FLARE, TOUCHDOWN, AND ROLLOUT. UPON TOUCHING DOWN AT NORMAL SPD ON THE ICE-PATCHED 50-FT WIDE RWY, THE ACFT DRIFTED R OF CTRLINE WITH A CONTRIBUTION FROM A 9 KT L XWIND. ATTEMPTS BY THE INSTRUCTOR TO CORRECT DRIFT WITH AILERON, RUDDER, AND BRAKES HAD LITTLE EFFECT AND THE R MAIN WHEEL ENTERED A 2 FT HIGH SNOW DRIFT AT THE RWY EDGE. THE ACFT, TRAVELING APPROX 25 KTS, PIVOTED SHARPLY TO THE R ABOUT THE R MAIN WHEEL, AFTER TRAVELING A FEW YARDS. THE L MAIN WHEEL STOPPED ABRUPTLY AT THE EDGE OF THE PACKED SNOWDRIFT WITH THE ACFT MOMENTUM SHARPLY PITCHING THE NOSE DOWN AND ROLLING THE L WING DOWN WITH THE R MAIN WHEEL BRIEFLY LIFTING OFF THE SURFACE. THE PROP FROM THE IDLING ENG STRUCK THE SOFT SNOW AND THE L WINGTIP SMARTLY HIT THE TOP OF THE SNOW DRIFT CAUSING MINOR DAMAGE TO THE L WING. REASON FOR MISHAP: INSTRUCTOR MISJUDGEMENT AND COMPLACENCY, ICY RWY, NARROW RWY, SNOW. I EXPECTED THE STUDENT TO REACT MORE QUICKLY TO THE CTRLINE DRIFT. THERE WAS NOT ENOUGH TIME TO REACT APPROPRIATELY. HOW MISHAP COULD HAVE BEEN PREVENTED: IMMEDIATE CORRECTION FOR DRIFT OFF CTRLINE (GREATER AILERON/RUDDER INPUTS). MORE IMMEDIATE APPLICATION OF BRAKES. ADD PWR: INITIATE 'BALKED' LNDG. ADD PWR: L TURNING TENDENCY TO COMBAT DRIFT TO R. FLAP RETRACTION: MORE FRICTION ON MAIN GEAR TO SLOW DOWN. DID I LEARN ANYTHING? YES! I WILL NOT BE COMPLACENT AGAIN.

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.