DEV FROM CLRNC RTE. ACR WAS CLRED FOR AN APCH TO RWY 1R; BUT THEY HAD BRIEFED FOR RWY 1L SO THAT IS THE RWY THAT THEY LINED UP WITH. THE TWR ASKED THEM WHICH RWY THEY WANTED AND THEN GAVE THEM RWY 1L. THE ACI IN THE JUMP SEAT WAS NOT AMUSED.

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UPON REACHING THE ICT TERMINAL AREA WE GATHERED THE ATIS AND BRIEFED THE APCH FOR RWY 1L. THERE WAS A LEVEL 5 TSTM 3 MI W OF LOC AND MOVING E. WHILE ON VECTORS TO THE FINAL APCH COURSE WE WERE CLRED FOR THE ILS TO RWY 1R. THE FO READ BACK 'CLRED FOR THE APCH.' WE WERE SET UP FOR A COUPLED APCH AND ALL NAVAIDS WERE SET TO RWY 1L. IT IS IMPORTANT TO NOTE THAT THERE WAS AN FAA AVIATION SAFETY INSPECTOR IN THE JUMP SEAT AND SHE WAS A FULLY BRIEFED CREW MEMBER. WE INTERCEPTED THE RWY 1L LOC AND WAS HANDED OFF TO THE TWR. WE CHKED IN WITH THE TWR AS ON THE APCH TO RWY 1L. THE TWR CTLR QUESTIONED US WHETHER WE WERE ON THE L OR R. WE ANSWERED RWY 1L. AND WE WERE CLRED TO LAND ON RWY 1L. AFTER LNDG THE FAA JUMP SEAT RIDER TOLD US WE WERE SUPPOSED TO BE ON RWY 1R NOT THE L. AT NO TIME DURING THE APCH DID SHE ASSERT HERSELF AND TELL US THAT WE WERE ON THE WRONG APCH. WE LEARNED OF THIS THROUGH THE ICT TRACON CTLRS PULLING THE AUDIO TAPES OF THE APCH. LIKEWISE OUR COMPANY WAS INFORMED BY ITS POI THAT THERE WAS A PROB AND THE FAA JUMP SEAT RIDER MIGHT BE CONSIDERING CERTIFICATE ACTION. AFTER DISCUSSING THIS 4 DAYS LATER WITH TRACON; THEY ADVISED THAT THERE WAS NO TFC ON RWY 1L AND THEY KNEW WE WERE ON RWY 1L AND DID NOT HAVE A PROB WITH IT.