A GIV FAILED TO MAKE A CROSSING RESTRICTION ON APPROACH TO TEB WHEN THE CHIEF PILOT IN THE RIGHT SEAT ADVISED INCORRECTLY IT WAS NOT NECESSARY.

Narrative

I WAS FLYING L SEAT. COMPANY CHIEF PLT R SEAT. APCH WAS BRIEFED. WE BOTH HAVE FLOWN THIS APCH MANY TIMES. WE WERE CLRED TO INTERCEPT THE FINAL APCH COURSE AND CLRED FOR THE APCH. ATC MADE NO MENTION OF XING DANDY AT 1500 FT. ONCE ESTABLISHED I ASKED THE CAPT TO GIVE ME 1500 IN THE ALT ALERTER. HE SAID NO; WE ARE CLRED TO DSND FROM 2000 FT OUR LAST ASSIGNED ALT. THAT STRUCK ME AS ODD AND AGAINST THE APCH PROC. I LOOKED AT MY VERT PROFILE AND COULD TELL THAT WE WOULD NOT CROSS DANDY AT 1500 FT. I HESITATED TO ARGUE SEEING HOW HE WAS THE CAPT AND PERHAPS I MISSED SOMETHING. IN THOSE FEW SECONDS THAT I HESITATED WE CLOSED IN ON DANDY. ATC THEN ORDERED AN IMMEDIATE DSCNT TO CROSS AT 1500 FT. I WHIPPED 1500 IN THE ALERTER AND BEGAN AN IMMEDIATE DSCNT. I WAS CLOSE TO 1500 FT WHEN WE CROSSED BUT I'M NOT SURE IF I MADE IT. THE CAPT STARTED TO ARGUE; BUT THANKFULLY DIDN'T GO VERY FAR. BASICALLY THE APCH AND LNDG WAS NOT EVENTFUL OTHER THAN THAT. AFTER LNDG CAPT TRIED TO SAY WE WERE CLRED TO DSND FROM 2000 FT BECAUSE WE WERE NOT TOLD TO CROSS DANDY AT 1500 FT. THE CTLR CORRECTED HIM. THE CTLR WAS VERY GOOD ABOUT IT AND WENT INTO VERY GOOD DETAIL AS TO WHY THAT RESTR WAS IN THE APCH. POSSIBLE CAUSES TO THE PROB WAS THE CAPT GOT BACK LATE FROM A TRIP THE NIGHT BEFORE AND THEN WENT OUT WITH ME EARLY THE NEXT DAY. FATIGUE ON HIS PART MAY HAVE BEEN AN ISSUE. ALSO HE IS A VERY GOOD R SEAT CAPT. BY THAT I MEAN EVEN THOUGH HIS NAME IS NOT ON THE FLT PLAN; HE TRIES TO TAKE CHARGE AND TELL YOU WHAT TO DO. THIS IS AN ON-GOING ISSUE WITH HIM AND THIS IS NOT THE FIRST TIME HE HAS GOT ME INTO TROUBLE. HE ALSO THINKS HE KNOWS MORE THAN CTLRS. I WOULD GO TO OUR SAFETY COMMITTEE; BUT HE IS ON IT.