background image

TBL 5

-

-

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

Element

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

element being enabled for the

flight crew to include in the

emergency message at their

discretion.

TXTD

-

(

free text

)

Note

-

 M alert

attribute.

TBL 5

-

-

System Management Uplink Message Elements (SYSU)

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

UM159 ERROR

(error

information)

UM159 ERROR

(error

information)

SYSU

-

System

-

generated

notification of an

error.

ERROR

(error

information)

UM160 NEXT DATA

AUTHORITY

(ICAO

facility designation)

Note

-

 The facility

designation is required.

UM160 NEXT

DATA

AUTHORITY

(facility)

Note

-

 Facility

parameter can

specify a facility

designation or no

facility.

SYSU

-

System

-

generated

notification of the

next datuthority

or the cancellation

thereof.

NEXT DATA

AUTHORITY

(facility

designation [O])

En Route Procedures

-

-