FCXxxx553I Record nnn: X' xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx xxxxxxxx '

Explanation

This message lists the first five fullwords of a control record that was found to contain unexpected data while processing a monitor data file. The string nnn is the number of the record and the strings xxxxxxxx show the data in hexadecimal. This message is always preceded by messages 551 or 552 that explain which part of the record contains unexpected information.