TM 1-1510-254-CL
FMS Lateral Deviation Source Warning
Select a LOC or cross-side
FMS as active NAV source
FMS Nav Source Warning
Select a different NAV source
Glideslope Warning
Select cross-side NAV source
Heading Warning
Select cross-side ADC
Airspeed Warning
Select cross-side ADC
LOC Warning
Select FMS or cross-side LOC NAV source
E-27