FABB3659E INSUFF. STORAGE FOR: `aaaaaaaa` - INCREASE REGION SIZE

Explanation
 Program FABBME3 issued a GETMAIN to acquire storage
for internal control blocks aaaaaaaa. The return
code specified that the attempt was unsuccessful.

System action
 FABBME3 ends with a User Abend 3659.

User response
 As indicated in the message, increase the region
size parameter on the EXEC statement for FABBME3. Rerun the job.