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4/20/23 

AIM 

TBL 5

3

Level Downlink Message Elements (LVLD) 

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 

DM6 REQUEST 

(altitude) 

Note 

 Used for a 

single level 

DM6 REQUEST 

(

level

LVLD

Request to fly at 

the specified level 

or vertical range. 

REQUEST 

(level) 

DM9 REQUEST 

CLIMB TO 

(altitude) 

DM9 REQUEST 

CLIMB TO (

level

LVLD

Request for a 

climb to the 

specified level or 

vertical range. 

REQUEST 

CLIMB TO (

level

DM10 REQUEST 

DESCENT TO 

(altitude) 

DM10 REQUEST 

DESCENT TO 

(

level

LVLD

Request for a 

descent to the 

specified level or 

vertical range. 

REQUEST 

DESCENT TO 

(

level

DM38 ASSIGNED 

LEVEL 

(altitude) 

Note 

 Used for a 

single level 

DM38 

ASSIGNED 

LEVEL (

level

LVLD

11 

Confirmation that 

the assigned level 

or vertical range is 

the specified level 

or vertical range. 

ASSIGNED 

LEVEL (

level

DM61 

DESCENDING TO 

(altitude) 

Note 

 urgent alert 

attribute 

N/A 

LVLD

14 

Report indicating 

descending to the 

specified level. 

DESCENDING 

TO (

level single

En Route Procedures 

5

3