Tower controller described a directed go around event where he/she failed to realized an arrival air...

Narrative:

An A319 called up on a visual approach to the runway xxc. I didn't have any aircraft close to runway xxl for departure; so I switched the A319; and cleared him to land on runway xxl. Meanwhile; ground was taxiing about 7 aircraft out for departure; so I was checking the sequence for departure. I requested that ground control taxi a dash-8 to runway xxl at east to split up two aircraft that were departing westbound one after another. I forgot that the A319 was on final for runway xxl and cleared a B737 for takeoff. The B737 did not respond. The A319 verified his clearance to land on runway xxl. Initially; I cleared him to land again thinking that he was lined up for runway xxc; as forgot I switched him to runway xxl. I double checked the asde-X; looked out the window; realized that I had switched the A319 to runway xxl and immediately sent the A319 around. The B737 had crossed a few feet over the hold line for runway xxl; so the asde-X go-around alert went off. I coordinated with 'departure Y' to let him know that the A319 was a go-around; turning right heading 195; and maintaining 2;000 ft. I then shipped the A319 to departure. I would recommend reducing the amount of time I was position late in the evening.

Original NASA ASRS Text

Title: Tower Controller described a directed go around event where he/she failed to realized an arrival aircraft was changed to a parallel runway with traffic cleared for takeoff.

Narrative: An A319 called up on a Visual Approach to the Runway XXC. I didn't have any aircraft close to Runway XXL for departure; so I switched the A319; and cleared him to land on Runway XXL. Meanwhile; Ground was taxiing about 7 aircraft out for departure; so I was checking the sequence for departure. I requested that Ground Control taxi a Dash-8 to Runway XXL at E to split up two aircraft that were departing westbound one after another. I forgot that the A319 was on final for Runway XXL and cleared a B737 for takeoff. The B737 did not respond. The A319 verified his clearance to land on Runway XXL. Initially; I cleared him to land again thinking that he was lined up for Runway XXC; as forgot I switched him to Runway XXL. I double checked the ASDE-X; looked out the window; realized that I had switched the A319 to Runway XXL and immediately sent the A319 around. The B737 had crossed a few feet over the hold line for Runway XXL; so the ASDE-X Go-Around Alert went off. I coordinated with 'Departure Y' to let him know that the A319 was a go-around; turning right heading 195; and maintaining 2;000 FT. I then shipped the A319 to departure. I would recommend reducing the amount of time I was position late in the evening.

Data retrieved from NASA's ASRS site as of July 2013 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.

Attributes
ACN	1002325
Time
Date	201204
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Night
Aircraft 1
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Route In Use	Visual Approach
Flight Plan	IFR
Aircraft 2
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Flight Plan	IFR
Person 1
Function	Local
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Conflict Ground Conflict Critical

Tower controller described a directed go around event where he/she failed to realized an arrival aircraft was changed to a parallel runway with traffic cleared for takeoff.