19980910028159A

(-23) Approach made to runway 24, runway gradient is 7.1% up, wind was 17 KTS gusting to 23 KTS., and blowing straight down the runway from the approach end. (Tailwind). The pilot said he added 23 KTS to aircraft airspeed to compensate for wind gusts for landing. Light turulance and +/- 5 KTS variance was noted on the airspeed indicator. At an estimated 3 ft. AGL a suddent gust or windshear caused a loss of lift and a very hard landing. The fuselage tail hit runway. Damaged rear bulkhead. (.4) the certificated airline transport pilot was landing in an uphill direction at a remote airport as part of an on-demand air taxi flight. The runway was 4,100 feet long, and 120 feet wide, with an uphill gradient of 7.1 percent. For the runway selected by the pilot, a tail wind of 20 knots, with gusts to 24 knots, was present. During the landing flare, about 3 feet above the runway, the pilot said he encountered a gust of wind, or wind shear. The airplane stalled, and contacted the runway hard on the main landing gear. After landing, the pilot reported he inspected the airplane for damage but did not notice any. The following day, the pilot noticed the aft tie-down ring, and tail s kid, located on the underside of the tail cone, was broken off the airplane. In addition, the airplane received damage to the aft empennage bulkhead, and adjacent fuselage structure.