Chris Book performs maintenance work on the floor in the cargo hold of a Boeing 737 at the AAR in Indianapolis, Wednesday, June 13, 2012. Book, laid off as an assistant manager at a Wal-Mart store in Indianapolis in 2008, was accepted into the first class of a sheet metal apprentice program at AAR. AAR officials say they created the program because public schools and two-year colleges aren’t producing enough qualified workers to fill the available skilled jobs. (AP Photo/Michael Conroy)