FABN0039W SEGMENT NAME $FABNnnn ON DBD dbdname IS NAMED BY DBD/PSB/ACB REVERSAL AUTOMATICALLY

Explanation

DBD segment name was assigned by the DBD/PSB/ACB Reversal utility automatically, because the name could not be obtained from any ACB members. $FABNnnn is the name assigned, nnn shows the segment code, and dbdname is the name of the DBD that was decoded.