Narrative:

Very busy arrival into dal. ILS13L/right were the landing runways. I requested the ILS 13R approaching dal; the controller advised the next sector would be assigning the runway but we would 'probably get our choice' as we were the last aircraft in line for landing at dal. I had ILS 13R loaded in the FMC; 'auto tune' active; and had the ILS 13R jepp page displayed on the mfd.when I was switched to the final controller he was so busy I did not want to interrupt him with the request for ILS 13R as he was constantly giving clearances. I observed he was clearing aircraft to both runways. The controller had me down to 2000 ft and stated: intercept the ILS 13L; maintain 2000 ft until established; 'cleared for the ILS 13L approach;' I was surprised to discover the auto switching did not switch from GPS to ILS and I had to manually switch to green needles and also had to manually set the course bar to the inbound course. When I intercepted the final the controller stated 'you appear to be lined up for the ILS 13R!' clouds were scattered and he instructed me to overfly the runway at 1500 ft then climb to 3000 ft. I realized during the confusion that I; in fact; did have the ILS 13R loaded and displayed. So I manually loaded the ILS 13L frequency in the navigation radio as the controller vectored me back around for another approach. I left the ILS 13R jepp display on the mfd. I also just left the display in green needles. During the next vector the controller asked me which runway I preferred and I asked for the ILS 13R. The controller had me down to 2000 ft and stated: intercept the ILS 13R; maintain 2000 ft until established; cleared for the ILS 13R. I intercepted the ILS 13L because I failed to change the navigation radio back to the ILS 13R and turned inbound on the ILS 13L instead of the ILS 13R. I was switched to the tower and the tower said I was lined up for the ILS 13L and I was cleared to land runway 13L!

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Original NASA ASRS Text

Title: CE525B pilot reported improperly operating navigation equipment resulting in lining up with the wrong ILS approach.

Narrative: Very busy arrival into DAL. ILS13L/R were the landing runways. I requested the ILS 13R approaching DAL; the controller advised the next sector would be assigning the runway but we would 'probably get our choice' as we were the last aircraft in line for landing at DAL. I had ILS 13R loaded in the FMC; 'Auto Tune' active; and had the ILS 13R Jepp page displayed on the MFD.When I was switched to the final controller he was so busy I did not want to interrupt him with the request for ILS 13R as he was constantly giving clearances. I observed he was clearing aircraft to BOTH runways. The controller had me down to 2000 ft and stated: intercept the ILS 13L; maintain 2000 ft until established; 'Cleared for the ILS 13L approach;' I was surprised to discover the auto switching DID NOT switch from GPS to ILS and I had to manually switch to GREEN needles and also had to manually set the course bar to the inbound course. When I intercepted the final the controller stated 'you appear to be lined up for the ILS 13R!' Clouds were scattered and he instructed me to overfly the runway at 1500 ft then climb to 3000 ft. I realized during the confusion that I; in fact; did have the ILS 13R loaded and displayed. So I manually loaded the ILS 13L frequency in the NAV radio as the controller vectored me back around for another approach. I left the ILS 13R Jepp display on the MFD. I also just left the display in green needles. During the next vector the controller asked me which runway I preferred and I asked for the ILS 13R. The controller had me down to 2000 ft and stated: intercept the ILS 13R; maintain 2000 ft until established; cleared for the ILS 13R. I intercepted the ILS 13L because I failed to change the NAV radio back to the ILS 13R and turned inbound on the ILS 13L instead of the ILS 13R. I was switched to the tower and the tower said I was lined up for the ILS 13L and I was cleared to land runway 13L!

Data retrieved from NASA's ASRS site 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.