CL-65 CREW CAME WITHIN 85 FT OF AN ANTENNA DSNDING INTO UNV. THE FLYING FO MISSET HIS ALTIMETER 1 PT 06 INCHES; AND THE CAPT WAS CONTACTING THE COMPANY WITH NON PERTINENT INFO; LEAVING THE FO TO FLY SOLO. EGPWS AND ATC MSAW WARNINGS WERE GIVEN. THE CREW DID NOT KNOW WHAT THE EGPWS WARNING WAS.

Narrative

WE WERE DSNDING INTO THE SCE AREA AND HAD BEEN PLACED ON A VECTOR BY THE CTR CTLR TO ENTER A R DOWNWIND FOR AN ILS APCH. THE CAPT HAD RECEIVED THE WX; INCLUDING ALTIMETER SETTING AND HAD CALLED THE STATION TO INFORM THEM OF OUR ARR. WHILE THE CAPT WAS AFT; I GOT A CLRNC TO DSND TO 4000 FT AND RECEIVED WHAT I BELIEVED TO BE AN ALTIMETER SETTING OF 30.33 INCHES FROM THE CTLR. I READ BACK BOTH THE ALT AND ALTIMETER SETTING AND BEGAN MY DSCNT. AS I LEVELED OFF AT 4000 FT I BEGAN A SPD REDUCTION TO 200 KIAS. AS THE AIRSPD SLOWED; A WARNING STARTED GOING OFF THAT I MISINTERPED AS A LOW AIRSPD WARNING. WE WERE ALSO CONFIRMING WE WERE AT 200 KIAS AND CONFUSED BY THE WARNING. I NOTICED THE RADAR ALTIMETER SAID 900 FT AGL. I BROUGHT THIS TO THE CAPT'S ATTN AND WE WERE BOTH CONFUSED. AT THAT TIME THE CTLR TOLD US TO CLB AND MAINTAIN 4000 FT. I STATED WE WERE AT 4000 FT AND HE AGAIN ISSUED A CLB. AT THAT POINT; I WAS DOUBTFUL OF MY POS SO I DISENGAGED THE AUTOPLT AND BEGAN A CLB TO A HIGHER; UNKNOWN ALT. SEVERAL MOMENTS LATER; WE RECEIVED A 'TERRAIN; TERRAIN' WARNING FROM THE ENHANCED GPWS. I THEN APPLIED MAX THRUST AND PERFORMED THE CFIT ESCAPE MANEUVER. WE EVENTUALLY LEVELED AT APPROX 9000 FT. AT THIS POINT WE WERE TRYING TO ASCERTAIN WHAT HAPPENED. WE THEN LOOKED ON THE PAPER THAT HAD THE WX FOR SCE AND SAW AN ALTIMETER OF 29.27 INCHES; NOT 30.33 INCHES. WE WERE OVER 1 INCH OFF; WHICH WOULD HAVE BEEN OVER 1000 FT. THE HIGHEST TERRAIN IN OUR AREA WAS APPROX 2800 FT MSL; AND WE WERE PROBABLY AT APPROX 3000 FT MSL. THIS HAD BEEN A LONG DUTY DAY FOR US WITH MANY DELAYS DUE TO WX. WE WERE OVER 2 HRS LATE; FATIGUED AND COMBINE THAT WITH MINIMAL ATC RESOURCES; A WRONG ALTIMETER SETTING WAS SET IN. I DO NOT HONESTLY KNOW IF THIS WAS PLT ERROR OR CTLR ERROR. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE CREW WAS ON THE LAST LEG OF A 14 HR DUTY DAY; OPERATING ON THE BACK SIDE OF THE CLOCK; AT 0 DARK 30 MINS. RPTR COMMENTED THAT THEY WERE 'DRAGGING.' THE ACFT IS EQUIPPED WITH A LOW SPD WARNING SYS IN ADDITION TO A STICK SHAKER. THIS IS THE WARNING THE FO THOUGHT HE HAD. THE ACFT IS EQUIPPED WITH EGPWS. THE FIRST THING EGPWS DOES IS HAVE A VERT PROFILE MAP POP INTO THE MOVING MAP DISPLAY. THE FO SAID THIS DID NOT REGISTER WITH HIM. THE ZNY CTLR FIRST TOLD THE CREW TO CLB AND MAINTAIN 4000 FT. SINCE THE CREW THOUGHT THEY WERE ALREADY AT 4000 FT THEY DID NOTHING. ONLY AFTER THE CTLR TOLD THE CREW TO CLB; IN AN EXITED VOICE; DID THE FO START A CLB. THE CREW HAS NOT BEEN CONTACTED BY ANYONE ABOUT THIS INCIDENT. THE CREW DID NOT RPT THE INCIDENT TO ANYONE.