Narrative:

Aircraft X was cleared to land on the left runway. Aircraft Y was cleared to land on the right runway. My trainee and I were scanning out the window for the aircraft; very difficult due to the scratched and dirty shades and the filthy windows. Also the radar does not differentiate which runway aircraft are lined up for. We saw aircraft X over the numbers for the right runway in landing configuration. We were forced to send aircraft Y around; so that we would not lose runway separation. No loss of separation occurred.get new window sun screens they are badly scratched and dirty. Clean the filthy windows. Align the radar so that we can tell which runway aircraft are landing on; or add a screen we can enlarge the picture on so we can tell which runway aircraft are lined up for.

Google
 

Original NASA ASRS Text

Title: A Controller had two aircraft cleared to land on parallel runways. One aircraft was lined up with the wrong runway. Later; the same Controller was working Ground Control and received approval for an aircraft to cross the runways.

Narrative: Aircraft X was cleared to land on the left runway. Aircraft Y was cleared to land on the right runway. My trainee and I were scanning out the window for the aircraft; very difficult due to the scratched and dirty shades and the filthy windows. Also the radar does not differentiate which runway aircraft are lined up for. We saw Aircraft X over the numbers for the right runway in landing configuration. We were forced to send Aircraft Y around; so that we would not lose runway separation. No loss of separation occurred.Get new window sun screens they are badly scratched and dirty. Clean the filthy windows. Align the radar so that we can tell which runway aircraft are landing on; or add a screen we can enlarge the picture on so we can tell which runway aircraft are lined up for.

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.