TBL 5-3-16

Free Text Uplink Message Elements (TXTU)
CPDLC Message Sets

Operational Definition in PANS-ATM (Doc 4444)

ATN B1

Response

Message
Element
Identifier

UM203 (free text)

TXTU-1

(free text)
Note - M alert
attribute.

UM169 (free text)
CPDLC NOT IN USE
UNTIL FURTHER
NOTIFICATION

See Note

(free text)

UM169 (free text)
"[facility designation]"
(for Altimeter Reporting Station)

See Note

(free text)

UM169 (free text)
"[facility designation]
ALTIMETER MORE
THAN ONE HOUR"
OLD

See Note

(free text)

UM169 (free text)
DUE TO WEATHER

See Note

(free text)

UM169 (free text)
REST OF ROUTE UNCHANGED

See Note

(free text)

UM169 (free text)
TRAFFIC FLOW
MANAGEMENT
REROUTE

See Note

(free text)

FANS 1/A
UM169 (free text)

Format for
Message Element Display

Message Element
Intended Use

NOTE-
These are FAA scripted free text messages with no GOLD equivalent.
TBL 5-3-17

Free Text Downlink Message Elements (TXTD)
Operational Definition in PANS-ATM (Doc 4444)

CPDLC Message Sets
FANS 1/A

ATN B1

Response

Message
Element
Identifier

DM68 (free text)
Note 1. - Urgency or Distress
Alr (M)

TXTD-1

Message Element
Intended Use

Format for
Message Element Display
(free text)
Note - M alert
attribute.

Note 2. - Selecting any of the
emergency message elements
will result in this message element being enabled for the
flight crew to include in the
emergency message at their
discretion.

5-3-10

En Route Procedures