1 General operational need

CCS FlightDataManagement Service addresses the CWP manual interactions for managing Flight Plan updates related to inputs made by the controller or by the Flight Data Operator.
It addresses operations related to:
- the System Flight Plan Data: Create, Cancel, Delete, Retrieve, Create Abbreviated, Non tactical modifications and Segment regression,
- to ATC Instructions: Holding, Heading, Speed, CFL, ROCD, EFL, XFL, DirectTo, ClearedTo, RFL and ECL,
- the correction of erroneous AFTN messages,
- WhatIf: Accept/Reject and Open/Close.

Note: in this version of the document, CCS FDM contains all the operations listed above except those related to WhatIf.