Honeywell GNS-XL - Manual (Page 291)

AFIS CONFIG FAIL Configuration module has failed. DMU non-
volatile memory configuration information will be used.
AFIS CONFIG LOST DMU non-volatile memory has lost its con-
figuration information and the configuration module has failed.
NOTE: Message may not cause MSG Annunciator to flash.
ACTION REQUIRED:
The following are the action required messages which pertain to AFIS
and may appear on the GNS-XL SYSTEM MESSAGES Page.
SEE AFIS MSG There is a text message on the AFIS MESSAGES
page which requires acknowledgement and possibly pilot action.
7-25 GNS-X L Flight Management System AFIS Operation
Rev. 0
Oct/96