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Expanded CDM Procedures (TWR/GND/DEL)

Starting CDM (All Controllers)

As the first thing when you log on you must activate vACDM to use it

Write .cdm master EKCH to activate!

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Expanded CDM Procedures (TWR/GND/DEL)

Perform above item before continuing, otherwise all is "????"

Expanded CDM procedures are done from Startup list, but can be done via departure list for TWR. Please know that:

  • You should adhere to CDM procedures at all times, either through Departure list or Startup list.
  • You MUST adhere to displayed CTOT for takeoff

Reference Material

Press on the top of the TSAT column where it says TSAT! This orders the departure list after TSATs and makes it easier to manage

With expanded mode there is a lot more information, but procedures are very similar

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Descriptor

There are four main descriptor of times (EOBT, TOBT, TSAT, CTOT), separated by three descriptors (E, TTG, CONF), and an additional four additional items (ASRT, ASAT, DE-ICE, ECFMP).

  • EOBT: Estimated Off Block Time
    • The pilot filed off block time from the flightplan (e.g. Simbrief). The one passengers shows up for.
  • TOBT: Target Off Block Time.
    • The pilot filed off block time, via our CDM tool to confirm actual time of start-up readiness.  
  • TSAT: Target Start-up Approval Time.
    • The time our system calculates based off the TOBT, to have the pilot fit into the sequence.
    • For internal capacity mainly
  • CTOT: Calculated Takeoff Time
    • A Takeoff time at which the aircraft must depart within -5/+10 min of. TSAT is adjusted accordingly.
    • For external capacity (ECFMP, ATFCM)

      (Color) Coding

      EOBT

      TOBT

      TSAT

      CTOT

      LIGHT GREEN

      --

      Valid, but not yet Active

      --

      DARK GREEN

      --

      Active

      By CDM Server*

      YELLOW

      --

      TOBT+4

      TSAT+4

      Default Color

      RED

      Flight Suspended

      --

      By CAD*

      ORANGE

      EOBT >5min from TOBT

      By Manual Event*

      WHITE

      Default color

       

       

      *Not important to know 
  • E: A descriptor about the validity of the filed TOBT.
  • TTG: Time until the TSAT (- equals time to go, +equals past TSAT)
  • CONF: A descriptor if the TOBT has been confirmconfirmed ( or altered) by either "pilot" or "ATC"

     

    • (Color) Coding

      E

      TTG

      CONF

      DARK GREEN

      Correct (C) or Passed (P)

      -35min until +3 min

      Default Color

      YELLOW

      --

      +4min until +5 min

      TSAT+4

      RED

      Invalid (I)

      --
  • ASRT: Actual Start-up Request Time
    • The pilot requested start-up if done so before TSAT is active.
  • ASAT: Actual Start-up Approval Time
    • When start-up approved (STUP or PUSH in Status), ASAT activates and rest of line goes gray.
  • DE-ICE: De Icing assigned
    • De-ice is required for the pilot, hence taxi out time will be extended.
  • ECFMP: European Central Flow Management Position
    • A note on what is the origin of a particular flow measure. Only for information.

Procedures

Procedures depends on whether you are handling SEQ only or DEL+SEQ.

Aircraft calls for ATC Clearance (if within AOR)

If CTOT is present: Advise pilot about CTOT!. Advise on earliest startup time (TSAT)

If no CTOT: No further action required at this stage.

Aircraft calls for STARTUP/PUSHBACK

Right click on TOBT to signal aircraft ready for startup. Check TSAT

  • If TSAT is Dark Green, Start-up can be approved
  • If TSAT is Light Green, Pilot is still more than 5 minutes early. he must wait
  • If TSAT is Yellow Start-up can be approved, but be quick, it will soon expire.
  • If TSAT is Blank, Flightplan expired and new TOBT must be filed.

If Start-up cannot be approved.

  • Click ASRT to remind that a request has been made by the pilot

When start-up approved

  • Update Status to STUP or PUSH to activate ASAT, and blank out the rest of the times. Aircraft is released.

Flow Chart

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