On January 04, 2005, at 1804 eastern standard time, an Aero Commander 690A, N17HF, was substantially damaged while landing at the Cuyahoga County Airport (CGF), Cleveland, Ohio. The two certificated commercial pilots and passenger were not injured. Night instrument meteorological conditions prevailed and an instrument flight rules flight plan had been filed for the flight which originated at the Schenectady County Airport (SCH), Schenectady, New York. The business flight was conducted under 14 CFR Part 91. The pilots reported that they conducted a "normal" ILS approach and landing to runway 24; however, during the landing rollout, the airplane began to yaw to the right. Attempts by both pilots to correct the yaw were unsuccessful and the airplane departed the runway surface. The airplane slid sideways and came to a stop partially on the runway and partially on the grass. According to a Federal Aviation Administration (FAA) inspector, who examined the accident site, the airplane veered off the right side of runway 24 during landing. The airplane crossed a taxiway, impacted two taxiway signs, and then skidded sideways, parallel to runway 24. The airplane sustained substantial damage to both wings and the fuselage. No mechanical deficiencies were noted with the airplane. Weather reported at CGF, at 1745, included winds from 240 degrees at 15 knots, gusting to 25 knots, 7 miles visibility, overcast clouds at 10,000 feet, temperature 48 degrees Fahrenheit, and dew point 31 degrees Fahrenheit.