NORMARC 7013 - Figure 7-3 Flow Diagram for Diagnosing Changeover;Shutdown Alarms

©1999 Navia Aviation AS 21833-3.4 Corrective maintenance
OPERATING MANUALNORMARC 7013
INSTRUMENT LANDING SYSTEM
7-13
toring section.
Figure 7-3 Flow diagram for diagnosing changeover/shutdown alarms.
Start changeover/
shutdown diagnose.
Changeover/ shutdown
diagnose done.
Is NF DDM or SDM
alarm the cause of
both alarms?
Is there maint.
warnings on the
TXC board?
External obstruction
is faulty.
The TXC board is
faulty.
Common cabling is
faulty.
Yes
No
No
No
Yes