        Jennifer whistled to herself as she shoved the Piper out of its hanger.  The weather over Traverse City was beautiful, and the weather map showed every indication that it was just as nice over Lake Michigan, too.  The twin-engined plane was in perfect condition—it was just a month out of annual inspection, with no major flaws noted.  As always, there were a dozen or so piddling things to correct.  Checklists and inspections or no, they cropped up every year.