A 1981 Beech BE-58P Baron, retired from the U.S. Forest Service, ended its final flight with a landing at the Williamsport Regional Airport in Montoursville late Friday morning, Acquisition of the twin-engine plane, to be used for instruction at Penn College's Lumley Aviation Center, was announced last fall. William P. "Scott" Welch, a licensed pilot and an instructor of diesel equipment technology at the college, made the whirlwind trip from Boise, Idaho, stopping overnight Thursday in Moline, Ill., (the flight was approved for daylight only), before taking off there at about 8:30 a.m.