AIM
8/15/19
5
−
3
−
10
En Route Procedures
TBL 5
−
3
−
16
Free Text Uplink Message Elements (TXTU)
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 Ele-
ment Display
UM169 (
free text
)
UM203 (
free text
)
R
TXTU
−
1
(
free text
)
Note
−
M alert
attribute.
UM169 (
free text
)
CPDLC NOT IN USE
UNTIL FURTHER
NOTIFICATION
N/A
R
See Note
(
free text
)
UM169 (
free text
)
“[facility designation]”
(for Altimeter Report-
ing Station)
N/A
R
See Note
(
free text
)
UM169 (
free text
)
“[facility designation]
ALTIMETER MORE
THAN ONE HOUR”
OLD
N/A
R
See Note
(
free text
)
UM169 (
free text
)
DUE TO WEATHER
N/A
R
See Note
(
free text
)
UM169 (
free text
)
REST OF ROUTE UN-
CHANGED
N/A
R
See Note
(
free text
)
UM169 (
free text
)
TRAFFIC FLOW
MANAGEMENT
REROUTE
N/A
R
See Note
(
free text
)
NOTE
−
These are FAA scripted free text messages with no GOLD equivalent.
TBL 5
−
3
−
17
Free Text Downlink Message Elements (TXTD)
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 Ele-
ment Display
DM68
(free text)
Note 1.
−
Urgency or Distress
Alr (M)
Note 2.
−
Selecting any of the
emergency message elements
will result in this message ele-
ment being enabled for the
flight crew to include in the
emergency message at their
discretion.
N/A
Y
TXTD
−
1
(
free text
)
Note
−
M alert
attribute.