ACFT DAMAGED AFTER LOSS OF ACFT CTL WHEN A SINGLE ENG GAR ATTEMPTED IN LNDG PROC XWIND LNDG.

Narrative

MY COMMERCIAL MULTI ENG INST STUDENT WAS PERFORMING A SINGLE ENG (VOR 23 APCH) INTO HULMAN REGIONAL ARPT. THE WIND WAS RPTED BY THE TWR TO BE 310 DEGS 17 GUSTS TO 25. THE SINGLE ENG APCH WAS TO BE FOLLOWED BY A SINGLE ENG LNDG. AS THE STUDENT BEGAN TO FLARE HE BALLOONED AND WAS TOLD TO ADD A TOUCH OF PWR TO RESTORE CTL OF THE ACFT. THIS CTL INPUT WAS MINIMAL. I THEN TOLD THE STUDENT THAT I FELT HE REALLY DIDN'T HAVE CTL OF THE ACFT AND SHOULD PROCEED WITH A GAR. THIS IS WHEN THE INCIDENT TOOK PLACE. THE STUDENT PROCEEDED TO PUT FULL PWR TO ONLY 1 ENG. THE ACFT IMMEDIATELY NOT ONLY WXVANED INTO THE WIND; BUT WITHOUT ANY CTL INPUT THE ACFT BEGAN TO VMC. AT THIS POINT I TOOK OVER THE CTLS AND BROUGHT THE IDLE ENG TO FULL PWR. BEING ON THE BACK SIDE OF THE PWR CURVE ONLY MADE THE SIT MORE DIFFICULT. I THEN RETRACTED THE LNDG GEAR AND FLAPS AND REALIZED THE ONLY WAY TO RECOVER FROM THE VMC WAS TO BRING THE PWR ON BOTH ENGS TO IDLE; AND ROLL THE WINGS LEVEL. JUST AS THE WINDS WERE GETTING LEVEL; THE ACFT STRUCK THE GND; COMING TO REST APPROX 50 YARDS NW OF THE INTXN OF RWY 23 AND RWY 31 AT HUF. AS THE PLT OF THE ACFT; I FEEL I DID EVERYTHING IN MY PWR TO RECOVER FROM THE SIT. BOTH OF US WERE NOT HURT IN THE LEAST BIT; AND MINIMAL DAMAGE TO THE ACFT CONSIDERING WHAT MIGHT HAVE OCCURRED.