144

Explanation
The error occurred during the processing of SYNADAF,
where it was determined that an incorrect access method code was specified
in the high order byte of register 15.

System programmer response
  If the error recurs and the program
is not in error, look at the messages in the job log for more information.
Search problem reporting data bases for a fix for the problem. If
no fix exists, contact the IBM® Support
Center. Provide the JCL and the program listing for the job.

Programmer response
Make sure that the ACSMETH parameter on
the SYNADAF macro instruction is correctly coded, or that the high
order byte of register 15 contains a valid access method code before
issuing SVC 68.

Source
DFSMSdfp