ATX LTT ALT AND SPD DEV FLYING PROFILE APCH INTO YYZ.

Narrative

DSNDING INTO TORONTO INTL; TORONTO APCH CLRED US FOR A PROFILE DSCNT TO RWY 24. THIS WAS MY FIRST CONTACT WITH A CANADIAN PROFILE DSCNT AND I DID NOT REALIZE THEY DIFFERED ACCORDING TO THE RWY CURRENTLY BEING USED FOR LNDG. I OPENED UP TO THE TORONTO SECTION AND LOCATED A PROFILE CHART. SINCE IT WAS THE FIRST ONE I CAME TO AND IT SAID PROFILE DSCNT FOR TORONTO I INCORRECTLY ASSUMED IT TO BE THE CHART WE WANTED. I SHOWED IT TO THE CAPT AND HE DID NOT CATCH THAT THE CHART WAS FOR A DIFFERENT RWY THEN WE HAD BEEN CLRED TO DSND FOR. THE CAPT THEN CORRECTLY FLEW THE WRONG CHART AND WE ENDED UP 4000 FT LOWER AND 40 KTS SLOWER THAN THE CORRECT CHART PROFILE. WE DISCOVERED OUR MISTAKE WHEN TORONTO APCH CALLED AND QUERIED US AS TO WHY WE WERE SO LOW AND SLOW. NO TFC CONFLICT RESULTED BECAUSE OF OUR MISTAKE. PROBABLY BECAUSE OF THE LATE HR. FACTORS CONTRIBUTING TO THIS MISTAKE ARE: I HAD JUST JOINED THIS COMPANY AND WAS COMPLETELY NEW TO HIGH ALT OPS. MY PREVIOUS EXPERIENCE WAS IN TURBOPROPS WHICH FLEW SIGNIFICANTLY LOWER. I HAD ONLY BEEN TO CANADA A COUPLE OF TIMES BEFORE AND HAD NOT BEEN EXPOSED TO THEIR PROFILE DSCNTS. WHEN I DID NOT UNDERSTAND THE DSCNT CLRNC I SHOULD HAVE ASKED THE CAPT WHAT THE CTLR WANTED. NEITHER THE CAPT NOR I PICKED UP THE FACT THAT WE HAD TO REALLY HURRY DOWN AND SLOW UP IN ORDER TO COMPLY WITH THE PROFILE; THIS SHOULD HAVE CLUED US IN THAT SOMETHING WAS WRONG.