PLT OF A TAILWHEEL CONVERTED C150 LOSES DIRECTIONAL CTL DURING XWIND LNDG RESULTING IN A GND LOOP AND DAMAGE TO THE ACFT'S WING AND LNDG GEAR.

Narrative

DURING A VFR APCH TO RWY 24; I EXPERIENCED A 10-15 KT XWIND FROM THE R. I HELD 65 KTS AND 20 DEG FLAPS AS INSTRUCTED BY THE ACFT OWNER WHO OCCUPIED THE R SEAT. DUE TO THE XWIND; I WAS PLANNING A WHEEL LNDG. ATTITUDE CTL WAS CHALLENGING DUE TO GUSTING WINDS COMING OFF NEARBY HILLS ON THE R SIDE. AS I CROSSED THE NUMBERS; THE ACFT TOUCHED DOWN ON THE R MAIN AND BOUNCED AND THE ACFT TOUCHED DOWN A SECOND TIME AND SUDDENLY VEERED OFF TO THE L. I ATTEMPTED TO CORRECT WITH R RUDDER WHILE HOLDING FULL R AILERON. I WAS UNABLE TO REGAIN DIRECTIONAL CTL AND THE ACFT SPUN AROUND TO THE L. IT MADE 2 ROTATIONS AND SUSTAINED DAMAGE TO THE L WING TIP AND L MAIN LNDG GEAR ON THE SECOND ROTATION. THE L WHEEL/TIRE WERE ALSO DAMAGED AND THERE WERE SCUFF MARKS ON THE L ELEVATOR. THERE WERE NO INJURIES TO ACFT OCCUPANTS OR ARPT PROPERTY. THE ONLY DAMAGE WAS TO ACFT. PRIMARY REASON FOR INCIDENT WAS MY LACK OF RECENT EXPERIENCE IN LIGHT ACFT AND THE GUSTY XWIND CONDITIONS. I ALSO NOTICED THAT THE WIND WAS IN THE PROCESS OF SHIFTING AFTER THE LNDG AND HAD BEGUN TO FAVOR RWY 6. THE GREAT MAJORITY OF MY FLT TIME IN THE PREVIOUS 15 MONTHS WAS IN A BOEING 727-200 (APPROX 1000 HRS). THE OWNER OF THE ACFT WAS A HIGHLY EXPERIENCED PLT IN THIS TYPE BUT WAS NOT AS ALERT AS HE SHOULD HAVE BEEN DUE TO MY HIGH TIME IN GENERAL. I BELIEVE THE INCIDENT COULD HAVE BEEN AVOIDED HAD WE BOTH BEEN MORE ALERT TO THE DANGERS OF A LIGHT TAILWHEEL ACFT IN XWIND CONDITIONS.