User's Manual

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ARINC 781-200 SDU and SCM
23-15-30 2-24
DATE TBD
Figure 2-9 Maintenance Mode MDCU Menu Structure
A. Accessing Maintenance Mode
You can only access the MCDU maintenance me
nus when the plane is on the ground
and classic services are logged off.