US Airways posted a net loss of $119 million in February, according to securities documents filed Wednesday. The airline also reported it had $406 million in unrestricted cash as of Feb. 28 -- a figure above the levels it is required to have to fulfill terms of a federally backed loan. Under the loan conditions, US Airways was required to have at least $371 million in cash on Feb. 25 and $325 million on March 4. The airline, under bankruptcy protection, is required to file monthly financial updates with the bankruptcy court.
