On June 6, 2002, about 1200 mountain standard time, a Cessna 182Q, N94986, made a hard landing at Sedona, Arizona. The Civil Air Patrol (CAP) was operating the airplane under the provisions of 14 CFR Part 91. The private pilot, the sole occupant, was not injured; the airplane sustained substantial damage. The personal local flight departed Sedona about 1120. Day visual meteorological conditions prevailed, and no flight plan had been filed. The pilot stated he landed on runway 03. Just as he began to flare, he experienced a rapid descent to the ground. The airplane hit hard and bounced. The pilot added power on the second bounce and initiated a go-around. The pilot thought the airplane continued in the porpoise event for one more bounce before the airplane became airborne. During the landing roll, the nose began to vibrate and the vibration worsened as he slowed down. Post landing inspection revealed that the nose wheel was flat and the fuselage and firewall were rippled.