Dear Ms. MacPherson:

US Airways and US Airways affiliated carriers request a slot utilization waiver for a portion of the 

January/February 2011 reporting period. This request is due to the extreme weather conditions 

throughout the reporting period.

As an air carrier with a significant portion of its operation in the geographic area affected by the 

weather throughout the period, we note that these weather occurrences are out of our control.

US Airways and our affiliates always intend to fly every scheduled flight at slot controlled airports, 

as well as airports throughout the rest of our system.

The weather in January and February had an impact over almost all of our system due to 

operational issues it created at our hubs in PHL and CLT with other destinations to/from DCA, 

LGA, JFK and EWR. These circumstances were completely out of US Airways control.

Many days the weather required significant delays or flight cancellations at the four slot controlled 

airports. At various times throughout the period outlying airports were closed or had significant 

delays causing cancellations at DCA, LGA, JFK, and EWR. The amount of snowfall was at record 

or near record amounts in many localities for individual days and monthly totals during the period.

Under the various slot controlled airport rules in DCA, LGA, JFK and EWR, slots available to 

operate must be operated a minimum of 80% of the days available during a two month reporting 

period. During the January/ February 2011 reporting period’s extreme weather US Airways and 

US Airways affiliates were able to operate each slot at the 80% or better requirement with one 

exception.

The LGA slots listed below should be at the US Airways affiliated carrier designated for the 2011 

dates which are noted. The reason for this request is due to a clerical error. The carriers are AIR 

Wisconsin (AWI) and Piedmont (PDT). The two carriers operate with the USA designator as a 

result of their USA affiliation. USA administers all slots operated by its affiliates. The error 

resulted from failure to send appropriate transfer messages. USA takes any error seriously. We 

will be working with our slot management system provider to attempt to prevent any errors of this 

sort in the future.

Slot Carrier Operating Dates

3011 AWI JAN 3

2009 PDT JAN 11/12/18/19/20/21/24/25/28

3246 PDT JAN 31; FEB 3/4/7/8/9

3726 PDT FEB 10/11/14/15/16 

For all the reasons stated above, US Airways and US Airways affiliates request a waiver for LGA 

operations at the 1700-1729 departure one-half hour. The various situations noted previously 

culminated at the 1700 departure half hour. The LGA flight completion percentages for US 

Airways on the six days mentioned below ranged between 33% and 70%. The normal daily 

system wide completion rate for US Airways is between 98.5% and 99.0%. These unusual 

operational conditions required several days from which to completely recover and have the 

ability to operate a routinely planned schedule. 

The slot waiver is specifically requested for those slots and dates listed:

2009/1700D for January 11, 12, 26 and February 1, 2

3246/1700D for January 11, 12, 26, 27 and February 1
3726/1700D for January 26 and February 1, 2

2169/1700D for January 11, 12, 26, 27 and February 1, 2

4337/1700D for January 26 and February 1, 2

Thank you for considering this waiver request. Please contact me if I may be of any additional 

help.

Quentin Bondurant

Manager Future Schedules

US Airways