At 17:45 EST, a Cessna 310R was substantially damaged during landing at Lehigh Valley International Airport; no one was injured. The pilot had filed an IFR flight plan between Bangor, Maine, and Northeast Philadelphia Airport. The flight diverted to Lehigh Valley when the pilot discovered, while the airplane was in icing conditions, that the right deicing boot would not inflate. During the landing, the right wing lost lift, and the right landing gear hit the pavement hard. Ground personnel told investigators that there was about 4 inches of ice on the leading edge of the right wing, and the left wing was clean.