Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Rank | City | Airport | Passengers | Carriers |
| --- | --- | --- | --- | --- |
| 1.0 | New York, NY | JFK | 145000.0 | JetBlue Airways |
| 2.0 | Philadelphia, PA | PHL | 90000.0 | US Airways |
| 3.0 | Newark, NJ | EWR | 70000.0 | United Airlines |
| 4.0 | Chicago, IL | ORD | 69000.0 | United Airlines |
| 5.0 | Detroit, MI | DTW | 54000.0 | Delta Air Lines |
| 6.0 | Washington, DC (National) | DCA | 52000.0 | US Airways |
| 7.0 | Washington, DC (Dulles) | IAD | 51000.0 | United Airlines |
| 8.0 | New York, NY | LGA | 49000.0 | Delta Air Lines, US Airways |
| 9.0 | Orlando, FL | MCO | 31000.0 | JetBlue Airways |
| 10.0 | Cleveland, OH | CLE | 12000.0 | United Airlines |
Question:
What was the airport with primary carrier of US Airways with a  2 ranking and more than 51,000 passengers?
Answer:
PHL