A JU52 TAXIING OUT FOR A PHOTO MISSION HITS A PARKED AT6 ON THE RAMP.

Narrative

THE MISSION WAS TO BE A PHOTO FLT FOR THE JUNKERS JU52. THE JU52 WAS PARKED IN A VERY TIGHT AREA ADJACENT TO A TXWY LINED WITH TORA TORA ACFT. WE INITIALLY REQUESTED A TUG TO MOVE US ONTO AN ACTIVE TXWY; BUT NONE WAS AVAILABLE. A MARSHALLER WAS REQUESTED AND WE STARTED ENGS. I WANTED TO TAXI STRAIGHT AHEAD; BUT A HELI HAD JUST LANDED AND BLOCKED THE TXWY. THIS THEN NECESSITATED TRYING TO MAKE AN APPROX TURN OF ABOUT 150 DEGS. THE GND CREW MEMBER AND MARSHALLER INITIATED TAXI CLRNC. I STARTED AN IMMEDIATE R TURN AND THEN STOPPED THE ACFT TO EVALUATE THE SIT AS RECOMMENDED BY THE ENGINEER WHO WAS LOOKING OUT THE R SIDE OF THE ACFT. HE THOUGHT WE WERE GETTING CLOSE TO SOME TXWY MARKERS. I THEN CONTINUED WITH THE TAXI WHEN THE COPLT RECOMMENDED GOING STRAIGHT AHEAD FOR A SHORT WHILE. WHEN HE SAID TO START TURNING; I APPLIED PWR TO THE #1 ENG AND APPLIED FULL R BRAKE TO INITIATE THE TURN. THE GND CREW MEMBER INDICATED CLRNC ON THE L SIDE. THE ACFT WAS NOT RESPONDING TO TURN; BUT CONTINUED AT AN ANGLE; AGGRAVATED BY THE XWIND ON THE L. AT THAT POINT; I REALIZED THAT I WAS GETTING TOO CLOSE TO THE PARKED ACFT AND CLOSED THE THROTTLES AND APPLIED FULL BRAKING. THE L WING WENT OVER THE COWL OF THE TORA AT6. THE L AILERON STRUCK THE COWL CAUSING IT TO DEPART THE ACFT. THE JU52 THEN CAME TO A STOP. THE JU52 HAS MARGINAL BRAKING AT BEST; AND IN THIS INSTANCE; WE SHOULD NEVER HAVE ATTEMPTED THE TURN. BECAUSE OF THE PRESSURE OF COMPLETING A PHOTO MISSION; WE THOUGHT WE COULD COMPLETE THE TURN IF WE APPLIED ENOUGH DILIGENCE. THERE WERE ENOUGH CONFLICTING INPUTS FROM THE COCKPIT CREW TO CAUSE ME TO USE MARGINAL JUDGEMENT CALLS. A BREAKDOWN OF CRM OCCURRED.