A WDB FLT CREW DEVIATED FROM CHARTED SPEED ON ARR INTO SBGR.

Narrative

WE WERE ON DSCNT ON THE TUCA 9 ARR INTO SBGR. WE WERE GIVEN CLRNC TO FLY THE ARR; BUT NOT 'VIA' THE ARR; SO WE DID NOT HAVE TO COMPLY WITH ALTITUDE AND SPEED RESTRS. SOMEWHERE NEAR LANE INTXN WE WERE GIVEN CLRNC 'VIA' THE ARR. WE CROSSED LANE INTXN ON ALTITUDE BUT ABOVE THE SPEED. WE WERE HAVING TROUBLE HEARING THE CLRNC AND HAD TO ASK SEVERAL TIMES IF WHAT WE WERE CLRED FOR. FOR SOME REASON I WAS NOT PLANNING ON CROSSING LANE AT FL190. VERY CLOSE TO THE INTXN THE FO SAID WE NEED TO CROSS LANE AT FL190. WE PASSED THE INTXN ABOVE THE FL190 RESTR; BUT SLOWED QUICKLY WITH NO NEGATIVE RESULTS. I STATED THE EVENT AS DEVIATION FROM CLRNC; BUT IT IS ALSO A LACK OF COM PROBLEMS. WE WERE HAVING TROUBLE UNDERSTANDING SBGR APCH. ALSO; IT APPEARED THE FO WAS AWARE OF THE SPD RESTR; BUT DID NOT MENTION IT UNTIL TOO LATE. WE ARE VERY TIRED AT THIS POINT AS THIS FLT LEAVES VERY LATE LCL TIME. IT IS NOW 8 HOURS LATER. MY BRIEFING AT THE GATE STATED THAT WE SHOULD KNOW WE ARE NOT AT THE TOP OF OUR GAMES DUE TO THE HOUR OF OP; AND THAT WE NEED TO CHK EACH OTHER; TO ENSURE A SAFE FLT. IN THIS TYPE OF OP WE NEED TO DOUBLE CHK OURSELVES AND THE ENTIRE CREW TO MAKE SURE WE COMPLY WITH ALL REQUIREMENTS.