Simplified CDM Procedures (APP/CTR)

BeforeThese procedures are for APP and CTR controllers covering an airport top-down. If your workload allows, use the Expanded CDM Procedures instead.

Start CDM for each airport you start,cover make sure CDM is started for your airport.first. See Starting CDM & handing over master.

SimplifiedThe CDMtwo Proceduresrules

(Top-down

by
1. A APP/CTR)CTOT must always be followed. A flight with a CTOT must start at its TSAT and take off within CTOT -5/+10.
2. A flight without a CTOT may be started without waiting for its TSAT if your workload is too high. This may mean longer queues at the runway.

Departure list

This part of CDM is known as ATFCM.

Simplified CDM procedures are doneWork from the departure list. Please note that:

• You are allowed to use expanded CDM procedures if your capacity allows
• You MUST adhere to the displayed CTOT for take-off
• You may ignore TSATs for flights without a CTOT if workload is too heavy

Reference Material

Click the TSAT column header. Thisto sorts the departure listsort by TSATstart-up and makes it easier to manage.time.

Actions

forsimplifiedCDM procedures are the same as for expanded procedures, but with more freedom.

Your departure list now shows a TOBT, a

TOBT: 

TSAT: Light green when valid but not yet within the start-up window.

TSAT: Dark green when within the start-up window.

TSAT: 

Column	Colour	Meaning
TSAT and a CTOT. TOBT shows the off-block time set by the pilot (or controller). TOBT:	Light green when valid but	Valid, not yet withinin the start-up window.window
TSAT	Dark green when within	In the start-up window.window (TSAT ±5)
TSAT	Yellow when about	About to expire (TSAT+45 to +5).6)
TSAT	Blank	No TOBT, or the times were cancelled
CTOT	Green / Red / Orange	Network slot / flow or capacity slot / manual or event slot

Procedure

Clearance

1. TSATIf isthe blankflight oncehas a CTOT, make sure it has expired.
a TOBT
(ask
• CTOT:for Green,one Orangeif ornot, Redthen dependingEdit onTOBT). Give the typeslot ofand restrictionstart-up causing the CTOT.

Procedures

Aircraft calls for ATC clearance
If a CTOT is present: advise the pilot of the CTOTtime with the clearance. You MUST then adhere to the TSAT.
If there is no CTOT:CTOT, no furtherCDM action is requiredneeded at thisclearance.
stage.

Start-up

Aircraft calls for start-up/pushback

1. IfWhen the pilot iscalls ready, click ASRT. If they are ready earlier thanbefore their TOBT, or have no TOBT, use Ready TOBT (right-click the TOBT).
2. Click ASRT to record that the pilot has requested start-up.

IfWith a CTOTCTOT: isapprove present:

start-up

only
• Adhere to the displayed TSAT. Ifwhen the TSAT is notdark yetgreen. withinIf it is light green, give the start-up windowtime (lightand green),ask the pilot mustto wait.call back.
• WhenWithout thea TSATCTOT: isyou withinmay theapprove start-up windowstraight (dark green, +/- 5 min), start-up can be approved.

If no CTOT is present:

• Start-up and pushback can be approved regardless of TSAT (simplified procedures only).away.
• Be aware that ignoring TSATs may lead to longer waiting times atSet the runway.

When start-up is approved, set theground status to STUP or PUSH.PUSH. This records the ASAT.

For phraseology, see CDM phraseology.