Tower controller reported clearing an aircraft to land while the aircraft was on downwind. Reporter ...

Attributes
ACN	966959
Time
Date	201108
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	Cessna Aircraft Undifferentiated or Other Model
Flight Phase	Final Approach
Flight Plan	VFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	Takeoff
Person 1
Function	Local Supervisor / CIC
Events
Anomaly	ATC Issue All Types Conflict Ground Conflict Critical Deviation - Procedural Published Material / Policy

Narrative:

I was working local control and controller in charge combined. I cleared aircraft X to land [while he was] on the right downwind. Two aircraft called ready for departure. I cleared the first aircraft for takeoff. I looked up on final to see aircraft X was on a 1/8 mile final about 100 ft. At the same time local assist said; 'that ain't gonna work.' I issued go-around instructions to aircraft X. There was no loss of separation. I was stressed over issues at home and should have taken the day off. In the future; I will if I don't feel I'm up to providing 100% concentration to the job and the flying community.

Original NASA ASRS Text

Title: Tower Controller reported clearing an aircraft to land while the aircraft was on downwind. Reporter subsequently cleared an aircraft for takeoff without noting the arrival was now on short final. A go around was issued when alerted by another Controller.

Narrative: I was working LC and CIC combined. I cleared Aircraft X to land [while he was] on the right downwind. Two aircraft called ready for departure. I cleared the first aircraft for takeoff. I looked up on final to see Aircraft X was on a 1/8 mile final about 100 FT. At the same time Local Assist said; 'That ain't gonna work.' I issued go-around instructions to Aircraft X. There was no loss of separation. I was stressed over issues at home and should have taken the day off. In the future; I will if I don't feel I'm up to providing 100% concentration to the job and the flying community.

Data retrieved from NASA's ASRS site as of April 2012 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.

Tower controller reported clearing an aircraft to land while the aircraft was on downwind. Reporter subsequently cleared an aircraft for takeoff without noting the arrival was now on short final. A go around was issued when alerted by another controller.