Narrative:

While working the departure one position in a south flow; I had aircraft X check on frequency climbing out of 2;700 ft for 5;000 ft off dal field. He was only 1 to 2 miles off the departure end and I noticed another target on an south tag (dallas south satellite position) just off aircraft X's right side. I didn't call traffic; assuming it was a VFR departure going to dallas south. Aircraft X several minutes later asked what had happened at love field; there was some confusion on dal tower frequency and he knew he was close to another aircraft.there was an issue with the departure headings off dal just before I took the position. Winds were very strong from the southwest and the previous departure controller requested dal use a 140 heading rather than 130 to correct for it. Dal and dfw tmu were having a difference of opinion as to whether or not a heading could be issued with a 'climb via'. Departures were actually stopped for a while as the departure issue was debated. After doing this job for thirty years there is one thing I know; procedures need to clear; specific and properly communicated to the workforce. There is no time to discuss ambiguous or less than fully developed procedure while attempting to work traffic (especially busy). I'm not sure if this played a role in the situation but it didn't help.

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Original NASA ASRS Text

Title: Three reports about an aircraft coming too close to another aircraft and what may have happened to cause this. Winds may have been a factor or a pilot not flying the assigned heading may also be the factor. Congestion on frequency may have played a part.

Narrative: While working the Departure One position in a south flow; I had Aircraft X check on frequency climbing out of 2;700 FT for 5;000 FT off DAL field. He was only 1 to 2 miles off the departure end and I noticed another target on an S tag (Dallas South satellite position) just off Aircraft X's right side. I didn't call traffic; assuming it was a VFR departure going to Dallas South. Aircraft X several minutes later asked what had happened at Love Field; there was some confusion on DAL Tower frequency and he knew he was close to another aircraft.There was an issue with the departure headings off DAL just before I took the position. Winds were very strong from the southwest and the previous Departure Controller requested DAL use a 140 heading rather than 130 to correct for it. DAL and DFW TMU were having a difference of opinion as to whether or not a heading could be issued with a 'Climb Via'. Departures were actually stopped for a while as the departure issue was debated. After doing this job for thirty years there is one thing I know; procedures need to clear; specific and properly communicated to the workforce. There is no time to discuss ambiguous or less than fully developed procedure while attempting to work traffic (especially busy). I'm not sure if this played a role in the situation but it didn't help.

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.