Is there a possibility that the R179 problems are going to be all fixed and perform just as good as the R160s? What problems are keeping the R179s from entering service? I remember riding on a R179 on the on Thursday December 14th, 2017 at 10:29AM from Fulton St to Broad St (the last stop). I didn't see any problems at all. When should I expect the 5-car sets to enter service?