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TBL 5

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Free Text Uplink Message Elements (TXTU)

CPDLC Message Sets

Operational Definition in PANS

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ATM (Doc 4444)

FANS 1/A

ATN B1

Response

Message

Element

Identifier

Message Element

Intended Use

Format for

Message

Element Display

UM169 (

free text

)

UM203 (

free text

)

TXTU

-

(

free text

)

Note

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M alert

attribute.

UM169 (

free text

)

See Note

(

free text

)

CPDLC NOT IN USE

UNTIL FURTHER

NOTIFICATION
UM169 (

free text

)

See Note

(

free text

)

"[facility designation]"

LOCAL ALTIMETER

(for Altimeter

Reporting Station)
UM169 (

free text

)

See Note

(

free text

)

"[facility designation]

LOCAL ALTIMETER

MORE THAN ONE

HOUR" OLD
UM169 (

free text

)

DUE TO WEATHER

See Note

(

free text

)

UM169 (

free text

)

REST OF ROUTE

UNCHANGED

See Note

(

free text

)

UM169 (

free text

)

See Note

(

free text

)

TRAFFIC FLOW

MANAGEMENT

REROUTE

NOTE

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These are FAA scripted free text messages with no GOLD equivalent.

En Route Procedures

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