Charlotte Douglas International Airport an aviation library with over 9,000 volumes and a very extensive photography collection. Rare aircraft in the collection include one of only two surviving Douglas D-558 Skystreak aircraft and the second (and oldest surviving) U.S.-built Harrier, which was used as the flight-test aircraft and accumulated over 5,000 flight-test hours. In January 2011, the museum acquired N106US, the US Airways Airbus A320 ditched by captain Chesley Sullenberger as US Airways Flight 1549 in the Hudson River on January 15, 2009. This aircraft, which was delivered on June 10, 2011, is about 35 years younger than any other commercial airliner on display
US Airways of a strained relationship with Allegheny County, with which the airline shared significant historical ties. US Airways Group Inc. said October 3, 2007 it would cut mainline flights at Pittsburgh International Airport to 22 a day from 31 and reduce regional flights to 46 a day from 77, beginning January 6, 2008, essentially reducing the airport to a destination spoke in its network. Pittsburgh was no longer a focus city for the airline as of its most recent annual report and January 2008 flight schedule reductions. US Airways East pilots took steps to relinquish their ALPA membership and form their