On Tue, 5 Nov 1991 16:06:28 EST Dennis Boone <DRBMAINT@MSU> said:
 
>Can anyone tell me what this means?
 
Disk full - the most likely and common error anyway.
 
>More generally, could someone tell me how to decipher such messages, and
>where in TFM I should have R'd?
 
The header in the source code would have told you it means return code 13
from FSWRITE. DMSERD ASSEMBLE (recently  OCO'ed) would say this means the
disk is full.
 
  Eric