Narrative:

[We were] holding short on runway xx. [Aircraft Y was] cleared to land on short final on [runway] xy. Other aircraft; [aircraft Z]; [was] further out on final and ATC cleared to land on [runway] xy. Tower cleared us to line up and wait [runway] xx. Both captain and first officer questioned each other as to the position of the incoming [aircraft Z] still far out on final. [We] taxied forward to comply with tower instructions [of] line up and wait. As we advanced forward; it became more apparent that [aircraft Z] was lined up on the wrong runway; [runway] xx. Our aircraft nose had crossed over the hold short line and stopped. First officer notified tower of our position and the incoming [aircraft Z]. Tower directed [aircraft Z] to go-around [because they were] lined up on wrong runway. Outcome [was] uneventful.

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Original NASA ASRS Text

Title: A319 Captain reported cleared on to runway by ATC; while traffic on final was mistakenly aligned to same runway.

Narrative: [We were] holding short on Runway XX. [Aircraft Y was] cleared to land on short final on [Runway] XY. Other aircraft; [Aircraft Z]; [was] further out on final and ATC cleared to land on [Runway] XY. Tower cleared us to line up and wait [Runway] XX. Both Captain and First Officer questioned each other as to the position of the incoming [Aircraft Z] still far out on final. [We] taxied forward to comply with Tower instructions [of] line up and wait. As we advanced forward; it became more apparent that [Aircraft Z] was lined up on the wrong runway; [Runway] XX. Our aircraft nose had crossed over the hold short line and stopped. First Officer notified Tower of our position and the incoming [Aircraft Z]. Tower directed [Aircraft Z] to go-around [because they were] lined up on wrong runway. Outcome [was] uneventful.

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.