CL65 INTO CYUL WITH WRONG ALTIMETER SETTING IS 1000 FT LOWER THAN ALTIMETER READS.

Narrative

WHILE BEING VECTORED FOR THE APCH TO RWY 24R AT MONTREAL; CANADA; AFTER THE FRANX 3 ARR; APCH CLRED US TO DSND TO 3000 FT. WE FOUND OURSELVES ON AN INTERCEPT FOR THE FINAL APCH COURSE AT 3000 FT WHEN APCH SAID SOMETHING TO THE EFFECT 'YOU ARE AT 2000 FT AND THAT'S OK; BUT THE NOISE ABATEMENT PROC FOR THAT AREA IS 3000 FT AND THAT'S WHAT I CLRED YOU TO.' SURE THAT WE WEREN'T IN ERROR; I LET THEM KNOW THAT ALL 3 ALTIMETERS SHOWED US LEVEL AT 3000 FT. THE CTLR SAID HE SHOWED 2000 FT AND THE ALTIMETER SETTING AT 29.32. TO MY HORROR WE HAD 30.32. WE WERE 1000 FT LOW WHERE THE MSA IS 2600 FT. THE SELF EXAMINATION IMMEDIATELY KICKED IN. I HAD BEEN SO USED TO MUCH HIGHER PRESSURE FOR SO LONG AS THE NORTH AMERICAN CONTINENT HAD BEEN UNDER THE INFLUENCE OF CONTINUAL HIGH PRESSURE WITH RESULTING MILD WX. I HAD BRIEFLY WONDERED HOW THE WX IN MONTREAL COULD BE 2 1/2 MI VISIBILITY WITH DRIZZLE AND RAIN WITH SUCH A HIGH PRESSURE SETTING BUT I DID NOT VERBALIZE THIS THOUGHT TO MY FO. THE REAL CONTRIBUTOR TO THIS POTENTIAL DISASTER; HOWEVER; WAS MY HABIT OF WRITING THE ALTIMETER SETTING USING ONLY THE LAST 2 DIGITS WHEN LISTENING TO THE ATIS; EG; .32 -- THAT IS NO LONGER A HABIT OR PRACTICE. AFTER WE GOT ON THE GND; I ASKED MY FO TO KICK ME; BUT HE REFUSED.