| |
61-02425, Boeing build number B-029, was a HC-1B helicopter. The U.S. Army acceptance date was 31 July 1963. The administrative strike date was 15 April 1969. 61-02425 accumulated 1,609.0 aircraft hours. In July 1962, the Department of Defense re-designated all U. S. military aircraft to a new system. All HC-1B helicopters became CH-47A. 61-02425 was the last aircraft on contract AF33(600)42055 (Fiscal Year 1961) to be designated as a HC-1B helicopter. AF33(600)42055 was the second production contract awarded to Boeing for the production of an additional 18 HC-1B helicopters. Subsequent helicopters were contracted as CH-47A helicopters. On 15 April 1969, while assigned to the U.S. Army Aviation School, Fort Rucker, Alabama, 61-02425 was lost due to an accident. At 1609 hours, 61-02425 was on take-off when, at about 200 feet AGL, the aft blades went to full pitch. The caused the aft pylon to climb, flipping the aircraft over to an inverted position. 61-02425 crashed and all personnel on board were fatalities, including the unit Standardization Instructor Pilot, CWO Owens. The names of the other personnel are unknown. Prior to the accident, 61-02425 had been grounded repeatedly for excessive leakage and control stiffness in aft pitch change servo while in flight. The last known location of 61-02425 was Fort Rucker, Alabama. Aircraft status: Crashed. |
