FABS3590E INVALID FIRST RECORD ON "HDHEADER" FILE

Explanation
 The second byte in the first record in the HDHEADER
data set contained a value not equal to X'00'.

System action
 FABSRT35 issues
a user 3590 abend.

User response
 Check the HDHEADER DD statement for JCL errors.
Correct the error and rerun the job.