TAIL DRAGGER TWIN ENG ACFT GND LOOPS ON LNDG.

Narrative

UPON LNDG AT MOULTRIE; GA (SPENCE AIR BASE) I LANDED IN A 3-POINT ATTITUDE. THE ACFT STARTED TO SWERVE A LITTLE TO R; I CORRECTED WITH L BRAKE (OVERCORRECTED); THEN THE ACFT STARTED A SWERVE TO L AND ALTHOUGH THE SPD WAS FAIRLY SLOW (40 MPH AND DECREASING); THE L SWERVE CONTINUED AND RESULTED IN THE ACFT GND LOOPING. THE R WING SPONSON TOUCHED THE GND AND STRUTS TO IT SEVERED. THE R WHEEL AND BRAKE SUSTAINED MINOR DAMAGE. THERE WERE NO INJURIES. THE OWNER OF THE ACFT (PIC) WAS OCCUPYING THE R SEAT. THIS WAS MY FIRST LNDG OF THIS ACFT. THERE HAD NOT BEEN A PROPER DISCUSSION OF THE PROPER LNDG TECHNIQUE; AND ALTHOUGH I RETAINED CTL OF THE ACFT THROUGHOUT THE LNDG; THERE WAS EXPECTATION THAT WITH THE EXPERIENCED OWNER (PIC) SITTING IN THE R SEAT; THAT HE WOULD ASSUME CTL; PRIOR TO ANY PROB DEVELOPING. HE DID NOT TAKE CTL (ALTHOUGH HE HAD TAKEN CTL TO SLIP THE ACFT ON FINAL) AND I OVERCTLED THE BRAKES -- WIND WAS NOT A FACTOR. HAD THERE BEEN A THOROUGH DISCUSSION OF TKOF AND LNDG PROCS; AND A DISCUSSION OF CHANGING OF CTL; THIS WOULD NOT HAVE OCCURRED. THE WIDGEON ACFT IS A TAIL DRAGGER AND IS QUITE SENSITIVE TO CTL INPUTS ON TKOF AND LNDG. THERE ARE NO BRAKES FOR THE R SEAT PLT. BOTH PLTS HIGHLY EXPERIENCED. POOR BRIEFING AND OVERCTL WERE THE CAUSES. DUAL CTLS WERE INSTALLED.