TM 1-1510-253-CL
DCP
Indicates failure of respective display control panel,
control of respective display via DCP is lost. PFD
bezel buttons are still operative. No in-flight action
required.
FD
Indicates that flight director has failed, or when pitch
or roll outputs from selected FGC are invalid, or loss
of nav information from active navigation source. If
coupled to failed flight director, autopilot may disen-
gage.
1. Check Nav Source Valid -- Select
Operable NAV Source
If only one PFD is affected:
2. FGP "CPL" Button -- Transfer to
Alternate Side
RA
Indicates that radio altitude data is invalid, radio al-
titude digital display, radio minimums functions, and
analog radio altitude display on PFD and TCAS will
be inoperable. Enhanced features of EGPWS will
continue, GPWS Modes 1-6 will be inoperative.
FMS 1 or FMS 2
Indicates that selected FMS navigation data is in-
valid, course pointer, lateral deviation bar and to/from
pointer are removed.
1. NAV Source -- Select Another NAV
Source
VNV
Indicates invalid VNAV data, VNAV deviation pointer
is removed.
1. Vertical NAV Source -- Select Another
Vertical Mode
E-48