The aircraft with manufacturer serial number 20165 and line number 725 is a Boeing 727-214. It had its maiden flight on 1969-05-21. The last recordered registration was N721US. The airframe is scrapped.
History:
PSA, from 27th of May 1969, registered as N539PS Piedmont Airlines, from 20th of August 1981, registered as N857N US Air merged, from 5th of August 1989, registered as N721US