Narrative:

We were at 3000 ft being vectored for an ILS to runway 31 at bna to maintain 2600 ft until established on the localizer. The first officer was flying and as his localizer came alive I tuned the #1 VOR from the bna VOR to the bna runway 31 ILS. We were visual at this point and the runway was in sight along with the VASI. We showed OM passage but the instruments showed us being to the left of the localizer and below GS. However, we were lined up with the runway and on GS according to the VASI. I retuned to the bna VOR for a DME fix. The first officer had started to descend on the VASI. The overall picture was not right and I told the first officer to level off and stop the descent. By this time the DME locked in and showed approximately 14 DME and I realized that this was smyrna airport not bna. The first officer leveled off at 1300 ft MSL. Just then we received a TCASII RA showing an aircraft ahead, below and climbing. As we had started to climb the RA was resolved. We continued to climb back to altitude and completed the approach to bna. In the climb bna came into view. The approach and runway lights were on and turned up high at smyrna and the runway lines up with runway 31 at bna. Also bna runway lights were low. If the ILS had not been tuned in it could have been worse. It would help if the bna runway 31 ILS had DME and the runway lights were turned up. I should have caught this earlier and in the future I will leave the VOR DME tuned in until established on the ILS.

Google
 

Original NASA ASRS Text

Title: FLC OF AN MLG DSNDED FOR APCH AT THE WRONG ARPT DURING NIGHT TIME OPS RESULTING IN PENETRATION OF ANOTHER ATA (CLASS D AIRSPACE).

Narrative: WE WERE AT 3000 FT BEING VECTORED FOR AN ILS TO RWY 31 AT BNA TO MAINTAIN 2600 FT UNTIL ESTABLISHED ON THE LOC. THE FO WAS FLYING AND AS HIS LOC CAME ALIVE I TUNED THE #1 VOR FROM THE BNA VOR TO THE BNA RWY 31 ILS. WE WERE VISUAL AT THIS POINT AND THE RWY WAS IN SIGHT ALONG WITH THE VASI. WE SHOWED OM PASSAGE BUT THE INSTS SHOWED US BEING TO THE L OF THE LOC AND BELOW GS. HOWEVER, WE WERE LINED UP WITH THE RWY AND ON GS ACCORDING TO THE VASI. I RETUNED TO THE BNA VOR FOR A DME FIX. THE FO HAD STARTED TO DSND ON THE VASI. THE OVERALL PICTURE WAS NOT RIGHT AND I TOLD THE FO TO LEVEL OFF AND STOP THE DSCNT. BY THIS TIME THE DME LOCKED IN AND SHOWED APPROX 14 DME AND I REALIZED THAT THIS WAS SMYRNA ARPT NOT BNA. THE FO LEVELED OFF AT 1300 FT MSL. JUST THEN WE RECEIVED A TCASII RA SHOWING AN ACFT AHEAD, BELOW AND CLBING. AS WE HAD STARTED TO CLB THE RA WAS RESOLVED. WE CONTINUED TO CLB BACK TO ALT AND COMPLETED THE APCH TO BNA. IN THE CLB BNA CAME INTO VIEW. THE APCH AND RWY LIGHTS WERE ON AND TURNED UP HIGH AT SMYRNA AND THE RWY LINES UP WITH RWY 31 AT BNA. ALSO BNA RWY LIGHTS WERE LOW. IF THE ILS HAD NOT BEEN TUNED IN IT COULD HAVE BEEN WORSE. IT WOULD HELP IF THE BNA RWY 31 ILS HAD DME AND THE RWY LIGHTS WERE TURNED UP. I SHOULD HAVE CAUGHT THIS EARLIER AND IN THE FUTURE I WILL LEAVE THE VOR DME TUNED IN UNTIL ESTABLISHED ON THE ILS.

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.