Narrative:

I was training a low time developmental, vectoring the carj during a busy session. Carj rejected a runway assignment they had initially accepted and ended up on a very non standard vector. While on this vector, the carj came into potential conflict with a DH8 climbing off phl. The DH8 was being vectored by a different controller. Both controllers issued vectors to provide separation and I took over the frequency from the developmental. In hindsight, training during this busy a session may not have been a good idea. Also, better vigilance on my part, of a low time developmental could have prevented this close call.

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Original NASA ASRS Text

Title: PHL APCH CTLR MONITORING DEVELOPMENTAL CTLR IS LATE REACTING TO QUESTIONABLE VECTOR AND EXPERIENCED NEAR LOSS OF SEPARATION.

Narrative: I WAS TRAINING A LOW TIME DEVELOPMENTAL, VECTORING THE CARJ DURING A BUSY SESSION. CARJ REJECTED A RWY ASSIGNMENT THEY HAD INITIALLY ACCEPTED AND ENDED UP ON A VERY NON STANDARD VECTOR. WHILE ON THIS VECTOR, THE CARJ CAME INTO POTENTIAL CONFLICT WITH A DH8 CLBING OFF PHL. THE DH8 WAS BEING VECTORED BY A DIFFERENT CTLR. BOTH CTLRS ISSUED VECTORS TO PROVIDE SEPARATION AND I TOOK OVER THE FREQ FROM THE DEVELOPMENTAL. IN HINDSIGHT, TRAINING DURING THIS BUSY A SESSION MAY NOT HAVE BEEN A GOOD IDEA. ALSO, BETTER VIGILANCE ON MY PART, OF A LOW TIME DEVELOPMENTAL COULD HAVE PREVENTED THIS CLOSE CALL.

Data retrieved from NASA's ASRS site as of July 2007 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.