On July 4, 2001, at 1118 hours Pacific daylight time, a Cessna 175, N9287B, porpoised during a hard landing at the Monterey Peninsula Airport, Monterey, California. The commercial certificated pilot and one passenger were not injured. The airplane was substantially damaged. The personal flight was operated by Case Transport, Inc., under 14 CFR Part 91, and departed from Hayward, California, at 1030. Visual meteorological conditions prevailed and no flight plan was filed. The pilot told the Safety Board investigator that she landed the airplane on runway 28R [3,502 feet long by 60 feet wide]. The traffic was light and she did not think wake turbulence was a factor. The landing seemed routine; however, she was surprised when the aircraft bounced and she attempted to "peg" the airplane to the runway. When the aircraft came to a stop, the propeller was damaged and the firewall and forward fuselage exhibited buckling damage. The surface wind was reported variable at 5 knots.