Support Documents

CPDLC fields:
/U - Uplink
/PD; /IMM; /EXP - pilot’s discretion, immediately, expedite
/TFC; /RES; /WX - due to traffic, due to airspace restriction, due to weather

NOTE: The altitude field (e.g., ALT 230) can be typed
between the CPDLC fields delineated with
spaces. Spaces are optional between CPDLC fields.

/OK (logic check override), Hold Data (fix/time, for example, COL/2235)

/U, Uplink Message

QN // AAL1254
QN //AAL1254
QZ // AAL1254
QZ //AAL1254

The space after // is optional

CPDLC fields:
/U - Uplink
/PD; /IMM; /EXP - pilot’s discretion, immediately, expedite
/TFC; /RES; /WX - due to traffic, due to airspace restriction, due to weather

NOTE: The CPDLC fields can be entered in any order between the command field 01 (e.g., QQ) and the FLID. Non-CPDLC fields (e.g., altitude) can be typed between the CPDLC fields delineated with spaces. Spaces are optional between CPDLC fields.

CPDLC fields:
/OK (logic check override) — when flight is controlled in local
facility, non-controlling sectors require an override
/U - Uplink
/PD; /IMM; /EXP - pilot’s discretion, immediately, expedite
/TFC; /RES; /WX - due to traffic, due to airspace restriction, due
to weather

NOTE: The CPDLC fields can be entered in any order
between the command field 01 (e.g., QQ) and the FLID. Non-CPDLC fields (e.g., altitude) can be typed between the CPDLC fields
delineated with spaces. Spaces are optional between CPDLC fields.

/OK (logic check override) — when flight is controlled in local facility, non-controlling sectors require an override

/U - Uplink

CPDLC fields:
/OK (logic check override) — when flight is controlled in local facility, non-controlling sectors require an override
/U - Uplink
/PD; /IMM; /EXP - pilot’s discretion, immediately, expedite
/TFC; /RES; /WX - due to traffic, due to airspace restriction, due
to weather

NOTE: The CPDLC fields can be entered in any order between the command field 01 (e.g., QQ) and the FLID. Non-CPDLC fields (e.g., altitude) can be typed between the CPDLC fields delineated with spaces. Spaces are optional between CPDLC fields.

CPDLC fields:
/OK (logic check override) — when flight is controlled in local facility, non-controlling sectors require an override
/U - Uplink
/TFC; /RES; /WX - due to traffic, due to airspace restriction, due
to weather /FRC - Full Route Clearance Indicator

NOTE: The CPDLC fields can be entered in any order between the command field 01 (e.g., QU) and the FLID. Non-CPDLC fields (e.g., fix) can be typed between the CPDLC fields delineated with spaces. Spaces are optional between CPDLC fields.

QX /R 312
QX /R AAL123

The QZ uplink command may not be combined with the Initiate Handoff, Offset Direction, or the Toggle On-Frequency actions.
/OK (logic check override) — when flight is controlled in local facility, non-controlling sectors require an override.
CPDLC fields:
/OK (logic check override) — when flight is controlled in local facility, non-controlling sectors require an override
/U - Uplink
/PD; /IMM; /EXP - pilot’s discretion, immediately, expedite
/TFC; /RES; /WX - due to traffic, due to airspace restriction, due
to weather

NOTE: The CPDLC fields can be entered in any order between the command field 01 (e.g., QZ) and the FLID. Non-CPDLC fields (e.g., altitude) can be typed between the CPDLC fields delineated with spaces. Spaces are optional between CPDLC fields.