Narrative:

I am a flm that was training on the arrival position. Weather was VFR and visual approaches were working well; we had approval to use the inboard runway. Air carrier X was on an adjacent radars frequency on approach to 24R; air carrier Y was on approach to 25L on my frequency; and air carrier Z was on a vector to be paired up with air carrier Y for 25R. I did not slow air carrier Z in time to keep in a good position to see or follow air carrier Y; my instructor had to take over to prevent the situation from becoming worse. On play back we became aware we may have lost standard separation between air carrier Z and air carrier Y and air carrier Z and air carrier X. Air carrier Z overshot final; because his speed was too fast and the controller had to expedite air carrier X through 050. Air carrier Z was restricted to 060; above both aircraft; but both the straight in traffic had not descended through 050 before we lost 3 miles. Both aircraft were observed vacating 060; but I don't know if the vacated altitudes rule applies here or not. I have been assigned to the area for almost 2 years; but so much of my time is spent on flm duties; my training on radar is sporadic. I would like to see training be made the priority for new flms that come to the area and allow them to become fully certified in the area prior to taking operational duties. I feel I have not been given enough time to train to stay proficient in what I've learned in the past and then given a chance to apply lessons learned in future training sessions.

Related reports:

Google
 

Original NASA ASRS Text

Title: TRACON Supervisor (FLM) receiving training reported a loss of separation event; noted the training provided on the position has been very sporadic and not in keeping with a reasonable chance to learn the sector.

Narrative: I am a FLM that was training on the arrival position. Weather was VFR and visual approaches were working well; we had approval to use the inboard runway. Air Carrier X was on an adjacent RADARS frequency on approach to 24R; Air Carrier Y was on approach to 25L on my frequency; and Air Carrier Z was on a vector to be paired up with Air Carrier Y for 25R. I did not slow Air Carrier Z in time to keep in a good position to see or follow Air Carrier Y; my instructor had to take over to prevent the situation from becoming worse. On play back we became aware we may have lost standard separation between Air Carrier Z and Air Carrier Y and Air Carrier Z and Air Carrier X. Air Carrier Z overshot final; because his speed was too fast and the Controller had to expedite Air Carrier X through 050. Air Carrier Z was restricted to 060; above both aircraft; but both the straight in traffic had not descended through 050 before we lost 3 miles. Both aircraft were observed vacating 060; but I don't know if the vacated altitudes rule applies here or not. I have been assigned to the area for almost 2 years; but so much of my time is spent on FLM duties; my training on RADAR is sporadic. I would like to see training be made the priority for new FLMS that come to the area and allow them to become fully certified in the area prior to taking operational duties. I feel I have not been given enough time to train to stay proficient in what I've learned in the past and then given a chance to apply lessons learned in future training sessions.

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.