B737 Undifferentiated or Other Model
Air Traffic Control Fully Certified
Situational Awareness; Confusion
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Executed Go Around / Missed Approach
Human Factors
Working all positions combined on my early shift. The RVR was dropping and I had a B737 on a base. I took a look at the RVR and was late on the turn to final from the north. I tried to turn him left on 040 to rejoin; thought I had time but it was to close to the approach gate. I went further left to 010 so I could get more space. I noticed it was too close; advised the aircraft that I would re-sequence him so turned him left to 250 heading. It appeared he started to turn right with out me instructing him to join the localizer; so I told him it appears you turned right; continue right heading 250. He then told me he was already turning left; so I went back and said continue left turn heading 250. At this time; I noticed we had a departure coming off Runway 33; so I instructed the B737 to expedite turn and told Tower to put the departure on a 360 heading. They might have gotten to close with no ensured separation; although I might have had divergence. Many things I could have done better. I was a bit tired from waking up early in the morning but that is not an excuse. I could have verified the B737 heading before assigning new turns. I could have climbed him to a safer altitude and stop the departure below him. The first time he went through final; I should have just re-sequenced him; instead of trying to correct in an IFR day. But the major one was verify his turn before assigning a new one. Not just get stuck in trying to help continue his turn; and just ask.
TRACON Controller described a loss of separation event when traffic issued a heading initially turned the wrong direction; the reporter acknowledging several oversights on his part during the event.