Looking at that individuals line it appears that they have 11:12hrs of non fly credit. Probably from the IOE days. This means that the 83 hr line they got was only 72hrs of awarded credit.

You would have to look at what the credit range was for the EWR 320 fleet but my guess is that it is slightly north of 72 hours. For this reason the line would have been illegal to award you.

The PBS system awards credit and NOT flight time. So sometimes this will cause lines to go junior, when junior guys have union days or vacation or MLA.