olasek
atc does have to monitor your progress in order to comply with its mandate, its top priority:
keep IFR traffic apart.
who would know if IFR traffic was being kept apart if atc were not fully aware of all known IFR traffic's location?
and the plane was not on a visual apch, it was cleared for an RNAV/GPS apch...read the first post.
so olasek...the 747 didn't cancel, was still on an IFR clearance and should have been tracked by tracon. Was radar service cxld? I don't think so.