1. Queue Assignment - Flights With Airline Created Slots CDM A & D Meeting June 5, 2001

2. SSR – Airline Created Slot SSR Added The Slot Create Message –When GDP Delays Extend Beyond a Program Two Flights Operated by the Same Airline for the Same City Pair Could Be Forced to Operate Out of Order –Slot Create Allows an Airline to Voluntarily Assign a Control to an Uncontrolled Flight at Its Current ETA, Then Swap the Two Flights to Get Them Back Into The Proper Sequence

3. Slot Create – Potential Issue An Unintended Consequence of the Slot Create Function Is That It Could Re-distribute Delays Among Flights If the Program Is Extended If an Airline Uses a Slot Create Message on a Flight, It Will Move That Flight From Queue 3 to Queue 2 in the Next Extension, Thus Giving That Airline Slightly Less Delay, and Distributing a Little More Delay to Everyone Else in Queue 3

4. RBS – Prioritization Queues Queue 1 – Exempt Flights –Sort Order - ETA Queue 2 – Previously Controlled Flights –Sort Order - ASLOT Queue 3 – Newly Controlled Flights –Sort Order – IGTA - taxi

5. Solution ETMS - Modify ADL to Allow Identification of Flights Voluntarily Controlled by the Airline –GDP Flag Will Not Be Set For Flights Voluntarily Controlled by the carrier FSM - Place Voluntarily Controlled Flights in Queue 3 Instead of Queue 2 –Any Flight With a Slot but No GDP, FAD, or GSD Flag Will Be Placed in Queue 3 Rather Than Queue 2

6. Issues to Watch Flight Order –Flights Voluntarily Controlled by the Carrier Will Not Maintain Slot Order in Relation to Other Previously Controlled Flights Due to Being in a Different Queue. –Airlines Will Need to Reorder These Flights After a Revision/Extension Event

7. Backup Slides These slide provide an example of how the slot create function would be used by an airline.

8. Two Flights Scheduled From IAD to BOS FLT1ETD: S1300ETA: S1430 FLT2ETD: S1400ETA: S1530 Note – Flights FLT1 and FLT2 are in their original schedule order

9. A GDP Is Run for 1100 to 1500 FLT1ETD: C1500ETA: C1630ALSOT: BOS081630A FLT2ETD: S1400ETA: S1530 Note – Flight FLT2 is now departing EARLIER then flight FLT1

10. Airline Creates a Slot for FLT2 at Its Current ETA FLT1ETD: C1500ETA: C1630ALSOT: BOS081630A FLT2ETD: S1400ETA: S1530 ALSOT: BOS081530L Note – Flights FLT1 and FLT2 now have slots and are ready to be swapped

11. Airline Then Swaps the Two Flights FLT1ETD: C1400ETA: C1530ASLOT: BOS081530L FLT2ETD: C1500ETA: C1630ASLOT: BOS081630A Note – Flights FLT1 and FLT2 have now been swapped and are back to their original order