AN ACR WDB RESPONDED TO A TCASII RA CAUSED BY AN ACFT CLBING THROUGH ITS ALT.

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SBOUND VICTOR AIRWAY 301; 30 KM N BAQ AT FL330. HAD TA (TCASII). WITHIN 3-5 SECONDS; GOT RA TO CLB! BEGAN IMMEDIATE CLB. WITHIN 5 SECONDS; GOT RA TO DSND NOW! PUSHED OVER AND ROLLED L. SAW ACFT DEAD AHEAD 1-2 MI. (AT TIME RECEIVED RA; TCASII SHOWED AN ACFT 200 FT BELOW AND CLBING.) SKEC SAID THEY HAD AN HVT WHICH HAD CLBED TO FL350! THE ACFT WE AVOIDED AT FL330 WAS CLBING. THE ACFT PASSED TO OUR R APPROX 1000 FT AND SLIGHTLY ABOVE. WHEN THE ACFT WENT OFF OUR DISPLAY; HE WAS PLUS 900 FT AT 10 MI BEHIND US. NO INJURIES. POSSIBLY WOULD NOT HAVE OCCURRED IF SKEC AND OTHER ACFT HAD CLRNCS IN ENGLISH! OTHER ACFT MAY NOT HAVE HAD TCASII; FROM CONVERSATION WITH SKEC WHEN THEY ASKED FOR HIS ALT; ETC. CALLBACK CONVERSATION WITH REPORTER REVEALED THE FOLLOWING: THE RPTING CAPT FLIES A WDB ACFT; 2-MAN COCKPIT WITH A RELIEF FO WHEN REQUIRED. THERE WERE 2 ACFT FLYING NBOUND; ONE AT FL310 AND THE INTRUDER RPTING LEVEL AT FL350. ACTUALLY; THE INTRUDER ACFT WAS STILL CLBING; THROUGH FL330 FOR FL350 WHEN THIS INCIDENT OCCURRED. THE RPTR STARTED TO FOLLOW THE 'CLB' COMMAND; BUT THEN RECEIVED A 'DSND' COMMAND. THE RPTR BANKED L SLIGHTLY; AND THE INTRUDER PASSED. THERE WAS VERY LITTLE ALT OR TRACK DEV BY THE RPTING ACFT. THE RPTR STATES THAT IT IS A COMMON PRACTICE FOR THE SOUTH AMERICAN ACR'S TO TURN OFF THEIR XPONDERS WHILE AIRBORNE; AND THERE IS A CONTINUING LANGUAGE PROB. THE RPTR IS NEAR RETIREMENT AND IS READY.