NEW YORK - Bankrupt Pinnacle Airlines Corp. on Jan. 2 moved in the U.S. Bankruptcy Court for the Southern District of New York for approval of an additional $52 million in post-petition financing, which the airline says will allow it to emerge from Chapter 11 bankruptcy (In Re: Pinnacle Airlines Corp., No. 12-11343, Chapter 11, S.D. N.Y. Bkcy.).