Narrative:

First officer was flying. Captain was asked to set up radios for ILS runway 27L (atl). Proper ILS frequency was set, but inbound course was left at previous airport's (pbi) course of 096 degrees, inadvertently, and unintentionally. Proper course should have been 272 degrees. We had difficulty maintaining ILS course except for using INS course information. Since no GS data was being received, as well as no accurate ILS course information, I did not descend below 3500 ft MSL until inside the marker and directed by tower. At 2500 ft MSL we didn't see the runway, so I requested a missed approach. The second approach went similarly, except the captain flew it using the standby horizon ILS information and INS data. Landing was uneventful. We discovered the error while assisting mechanic's trouble-shooting.

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Original NASA ASRS Text

Title: ILS APCH WAS INITIATED WITH THE INCORRECT COURSE INFO SELECTED -- FLC MEMBERS FAILED TO SET LOC PROPERLY.

Narrative: FO WAS FLYING. CAPT WAS ASKED TO SET UP RADIOS FOR ILS RWY 27L (ATL). PROPER ILS FREQ WAS SET, BUT INBOUND COURSE WAS LEFT AT PREVIOUS ARPT'S (PBI) COURSE OF 096 DEGS, INADVERTENTLY, AND UNINTENTIONALLY. PROPER COURSE SHOULD HAVE BEEN 272 DEGS. WE HAD DIFFICULTY MAINTAINING ILS COURSE EXCEPT FOR USING INS COURSE INFO. SINCE NO GS DATA WAS BEING RECEIVED, AS WELL AS NO ACCURATE ILS COURSE INFO, I DID NOT DSND BELOW 3500 FT MSL UNTIL INSIDE THE MARKER AND DIRECTED BY TWR. AT 2500 FT MSL WE DIDN'T SEE THE RWY, SO I REQUESTED A MISSED APCH. THE SECOND APCH WENT SIMILARLY, EXCEPT THE CAPT FLEW IT USING THE STANDBY HORIZON ILS INFO AND INS DATA. LNDG WAS UNEVENTFUL. WE DISCOVERED THE ERROR WHILE ASSISTING MECH'S TROUBLE-SHOOTING.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.