The abend is occurring in the EZTPDTCM module, which really is a 6.4 module. The 11.5/11.6 module with the same purpose is named ETDTCM.
The listing shows:
CALL EZTPDTCM USING (USER-INFO + -DBREQ3
ASA01-REQ-AREA + -DBREQ3
ASA01-WORK-AREA + -DBREQ3
So, there is actually a CALL to the 6.4 module coded inside the DBREQ3 module.
Looking at the 11.6 DBREQ3 macro delivered with release 11.6 in the CBAAMAC library, this is the following CALL:
CALL ETDTCM USING (USER-INFO +
The abend is occurring because the 6.4 macros are being picked up for the release 11.5/11.6 program.
Once the correct macros from release 11.5/11.6 were picked up, then the S0C4 abend should be resolved.
Release 11.5-C/11.6-C needs to ensure that EZTPDTCM is being picked up in the correct version of DBREQ3 as being called.