AITC
Explanation
An error (INVALID, DISASTER or unexpected EXCEPTION response) has occurred on a call to the recovery manager (RM) domain. The domain provides an exit trace, and possibly a console message and a system dump (depending on the options specified in the dump table).
This failure is either the result of a task purge, or a CICS logic error,
System action
The mirror task is abnormally terminated with a CICS transaction dump.
User response
See the related diagnostic material produced by the recovery manager domain and determine the reason for the failure. In the case of a CICS logic error, you need further assistance from IBM. See IBM problem support for guidance on how to proceed.