Explanation

A DSP abended or failed. In the dump title, the variable fields are:
dspname
The failing DSP
dddd
The device number, if available.
code
The system abend code
xxx
The DM type
nnn
The unique JES3 fail soft identifier

Message IAT3702 is issued. IATABN0 (online format driver) requests an SVC dump. The areas dumped are PSA, NUC, SQA, LSQA, RGN, LPA, TRT, and CSA.