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AIM

10/12/17

5−3−5

En Route Procedures

TBL 5−3−5

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 (alti-

tude)

Note − Used for a sin-

gle level

DM6 REQUEST

(level)

Y

LVLD−1

Request to fly at

the specified level

or vertical range.

REQUEST (level)

DM9 REQUEST

CLIMB TO

(altitude)

DM9 REQUEST

CLIMB TO (level)

Y

LVLD−2

Request for a

climb to the speci-

fied level or verti-

cal range.

REQUEST

CLIMB TO (level)

DM10 REQUEST

DESCENT TO 

(altitude)

DM10 REQUEST

DESCENT TO

(level)

Y

LVLD−3

Request for a de-

scent to the speci-

fied level or verti-

cal range.

REQUEST DE-

SCENT TO (level)

DM38 ASSIGNED

LEVEL (altitude)

Note − Used for a sin-

gle level

DM38 AS-

SIGNED LEVEL

(level)

N

LVLD−11

Confirmation that

the assigned level

or vertical range is

the specified level

or vertical range.

ASSIGNED LEV-

EL (level)

DM61 DESCEND-

ING TO (altitude)

Note − urgent alert at-

tribute

N/A

N

LVLD−14

Report indicating

descending to the

specified level.

DESCENDING

TO (level single)

9/13/18

AIM