FABP3753E UNSUCCESSFUL VSAM SHOWCB (FOR ACB)
Explanation
After issuing a SHOWCB macro for an ACB control block, register 15 contained a nonzero return code.
System action
HD Pointer Checker issues a USER 3753 abend.
User response
Correct the error and rerun the HD Pointer Checker job.
Problem determination
Use standard VSAM debugging techniques.