background image NOTE - Pilots are expected to maintain a listening watch on the transferring controller's frequency until the time, fix, or altitude specified. ATC will omit frequency change restrictions whenever pilot compliance is expected upon receipt. TBL 5 - - Route Uplink Message Elements (RTEU) 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 UM74 PROCEED DIRECT TO ( position ) UM74 PROCEED DIRECT TO ( position ) W/U RTEU - Instruction to proceed directly to the specified position. PROCEED DIRECT TO ( position ) UM79 CLEARED TO ( position ) via ( route clearance ) UM79 CLEARED TO ( position ) via ( route clearance ) W/U RTEU - Instruction to proceed to the specified position via the specified route. CLEARED TO (position) VIA (departure data[O]) (en - route data) UM80 CLEARED (route clearance) UM80 CLEARED (route clearance) W/U RTEU - Instruction to proceed via the specified route. CLEARED (departure data[O]) (en - route data) (arrival approach data) UM83 AT (position) CLEARED (route clearance) W/U RTEU - Instruction to proceed from the specified position via the specified route. AT (position) CLEARED (en - route data) (arrival approach data) TBL 5 - - Route Downlink Message Elements (RTED) 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 DM22 REQUEST DIRECT TO ( position ) DM22 REQUEST DIRECT TO ( position ) RTED - Request for a direct clearance to the specified position. REQUEST DIRECT TO ( position ) En Route Procedures - -