TM 1-1510-225-10
3B-55
Table 3B-9. CDU Annunciations and Scratchpad Messages (Continued)
ANNUNCIATION
/SP MESSAGE
INITIATING CONDITION
RESET
MECHANISM
LOCATION
BLINKING
NOT
CLEARABLE
CDU
MSG
ALERT
RTK IS ACTIVE
Attempting to delete or
modify the racetrack fix or
delete MFP attribute or
modify the flight plan course
or insert a PPOS hold or
insert a waypoint at the
active waypoint during
pattern execution.
Clear key
SP
A
safe keys
GPS SA/AS keys on the
GPS’s.
Clear key
A
N
SELECT ALTN
LOAD
Access the Alternate Flight
Plan Catalog page from the
Start 3 page.
Clear key or
select alternate.
SP
N
SELECT SID/RWY
Attempt to access SID
Transitions page without
both SID and RWY
selected.
Clear key or
selecting a SID or
RWY.
SP
N
SELECT
STAR/RWY
Attempt to access STAR
Transitions page without
both STAR and RWY
selected.
Clear key or
selecting a STAR
or RWY.
SP
N
SET MASTER OFF
Attempt to set late net entry
to ON when the ARC-210
has been designated net
master.
Clear key
SP
A
sincgars cue
V/UHF R/T indicates to the
FMS that another user is on
the cue frequency.
Clear key
A
B
SINCGARS MODE
Attempting to send or
receive time or toggle
squelch while tuned to a
SINCGARS channel.
Clear key
SP
A
TIME OP IN
PROCESS
Comm time operation being
performed.
Clear key
SP
A
UNUSED
FUNCTION
Attempt to select IFF or M3
key.
Clear key
SP
N
update magvr
Current magnetic variation
data is more than 6 months
old.
Clear key or load
new magnetic
variation data.
A
USER WPT LIST
FULL
Attempt to add a user
waypoint when the user
waypoint database is full.
Clear key
SP
A
