AIM
8/15/19
5
−
3
−
3
En Route Procedures
TBL 5
−
3
−
3
Lateral Downlink Message Elements (LATD)
CPDLC Message Sets
Operational Definition in PANS
−
ATM (Doc 4444)
FANS 1/A
ATN B1
Response
Message
Element
Identifier
Message Element
Intended Use
Format for
Message Element
Display
DM59 DIVERTING
TO
(position)
VIA
(route clearance)
Note 1.
−
H alert at-
tribute
Note 2.
−
N
response attribute
N/A
N
1
LATD
−
5
Report indicating
diverting to the
specified position
via the specified
route, which may
be sent without any
previous coordina-
tion done with
ATC.
DIVERTING TO
(position)
VIA
(en
−
route data)
(arrival
approach data[O])
DM60
OFFSETTING
(distance offset)
(direction)
OF
ROUTE
Note 1.
−
H alert at-
tribute
Note 2.
−
N
response attribute
N/A
N
1
LATD
−
6
Report indicating
that the aircraft is
offsetting to a par-
allel track at the
specified distance
in the specified di-
rection off from the
cleared route.
OFFSETTING
(specified distance)
(direction)
OF ROUTE
DM80 DEVIATING
(deviation offset)
(di-
rection)
OF ROUTE
Note 1.
−
H alert at-
tribute
Note 2.
−
N response
attribute
N/A
N
1
LATD
−
7
Report indicating
deviating specified
distance or degrees
in the specified di-
rection from the
cleared route.
DEVIATING
(specifiedDevia-
tion)
(direction)
OF
ROUTE
1
ICAO Document 10037, Global Operational Data Link (GOLD) Manual has these values set to Y in their table.
TBL 5
−
3
−
4
Level Uplink Message Elements (LVLU)
CPDLC Message Sets
Operational Definition in PANS
−
ATM (Doc 4444)
FANS 1/A
ATN B1
Response
Message
Element
Identifier
Message Element
Intended Use
Format for
Message Element
Display
UM19 MAINTAIN
(altitude)
Note
−
Used for a sin-
gle level
UM19
MAINTAIN
(level)
W/U
LVLU
−
5
Instruction to
maintain the speci-
fied level or verti-
cal range.
MAINTAIN
(level)
UM20 CLIMB TO
AND MAINTAIN
(altitude)
Note
−
Used for a sin-
gle level
UM20 CLIMB TO
(
level
)
W/U
LVLU
−
6
Instruction that a
climb to the speci-
fied level or verti-
cal range is to
commence and
once reached is to
be maintained.
CLIMB TO (
level
)