LTT ISSUED APCH ON WRONG ILS SYS.

Narrative

E OF THE I-SJC LOC 6 NM S OF SJC AT 8000 FT ON THE JAWWS 1 ARR COALDALE TRANSITION WE WERE EXPECTING THE ILS RWY 12R PER THE ATIS AND STAR RESTRS. WE WERE GIVEN 2 FREQ CHANGES IN RAPID SUCCESSION WHILE MY COPLT WAS TRYING TO UPDATE OUR ATIS INFO WHICH STILL SHOWED RWY 12R AS THE ACTIVE RWY. WITH NO REPLY ON THE 2ND FREQ CHANGE WE WENT BACK TO THE LAST FREQ. WE WERE TOLD THE LAST FREQ WAS GIVEN IN ERROR AND THAT WE WERE ON THE CORRECT FREQ; GIVEN A 270 DEG HDG; DSCNT CLRNC TO 4000 FT AND CLRED FOR THE ILS RWY 30L JUST OUTSIDE THE OM FOR RWY 30L. I INITIATED OUR DSCNT AS SOON AS MY COPLT SELECTED THE LOC FREQ AND INBOUND COURSE ON MY SIDE. THE SJC VOR WAS STILL SELECTED ON THE COPLT'S SIDE SO HIS NEEDLE WAS WITHIN 1 DOT R OF COURSE. MY HSI NEEDLE WAS FULL SCALE R INDICATING WE HAD ALREADY FLOWN THROUGH THE LOC; SO I STARTED A R TURN TO INTERCEPT. I ASKED MY COPLT FOR AN IDENT FOR THE LOC BECAUSE I KNEW THE ILS WENT UP A VALLEY WITH HILLS ON EACH SIDE; SOME HIGHER THAN 4000 FT (MSA EQUALS 5500 FT). I STOPPED THE DSCNT BTWN 6300 FT AND 6000 FT; AND MY COPLT WAS TELLING ME THE SELECTED LOC (CORRECT FREQ) WAS NOT GIVING THE CORRECT IDENT. AT THE SAME TIME APCH CALLED AND SAID WE WERE SHOWING 2 MI R OF COURSE AND ASKED WHAT WE WERE INDICATING. WE TOLD THEM WE WERE SHOWING L OF COURSE AND ASKED FOR A VECTOR FOR THE LOC. WE STILL SHOWED WE WERE L OF COURSE AFTER REQUESTING APCH TO CHK THE LOC SELECTED BY TWR. WE TOLD APCH THAT THE ILS APCH WAS NOT GOING TO WORK AND ASKED FOR A RADAR VECTOR FOR A VISUAL APCH. WE WERE GIVEN AN APPROX 260 DEG HDG AND DSCNT TO 3000 FT FOR THE VISUAL. WHEN WE BROKE OUT WE WERE 3 MI FROM THE ARPT AND DSNDING THROUGH 4000 FT. A STABILIZED DSCNT TO THE RWY TOUCHDOWN ZONE COULD NOT BE MADE SO WE INITIATED A GAR. TWR SWITCHED US BACK TO APCH FOR SEQUENCING FOR ANOTHER ILS. APCH ASKED THE REASON FOR THE GAR AND WE TOLD THEM THE LOC WAS NEVER CHANGED FROM RWY 12R AND IT MESSED UP OUR APCH AND LEFT US TOO HIGH TO LAND ON THE RWY. WE WERE THEN GIVEN A CLRNC FOR A VISUAL APCH AND LANDED WITHOUT FURTHER INCIDENT. I CALLED SJC TWR AND THEN APCH AND DISCUSSED THE MISTAKES THAT WERE MADE IN HOPES OF PREVENTING A RECURRENCE.