On December 29, 1995, at 1352 Hawaii standard time, a Classic Aircraft Waco YMF, N40115, collided with a Cessna 172N, N734ZC, while taxiing on the Kailua Kona, Hawaii, airport. The Waco YMF was owned and operated by Classic Aircraft Corporation of Kailua, and was returning from a local area for-hire sightseeing flight. The Cessna 172N was owned and operated by the pilot and was taxiing for takeoff on a local area personal flight. Visual meteorological conditions prevailed at the time and no flight plan was filed for either operation. Both aircraft sustained substantial damage. The commercial pilot and the two passengers onboard the Waco were not injured. The private pilot, the sole occupant of the Cessna 172N, was not injured. The collision occurred in an area of the airport designated as a non-movement ramp area, which is not under the control or supervision of the FAA Air Traffic Control Tower. In verbal and written statements to responding airport security personnel and FAA inspectors, the pilot of the Waco said he entered the ramp area, which was unusually congested with parked aircraft. The proximity of the parked airplanes limited his ability to S-turn and resulted in limited forward visibility. The pilot reported that he did not see the Cessna in time to avoid the collision. The pilot of the Cessna 172N reported that she completed a run-up and entered the taxi lane on the ramp to proceed to the taxiway. After entering the taxi lane, she observed the Waco coming toward her aircraft and moved as far to the side as she could and stopped the aircraft. The pilot said she did not attempt any radio communications with the Waco. The Waco's left wing strut brace contacted the left wing of the Cessna. Neither the pilot nor the operator of the Waco have responded to repeated requests to complete an aircraft accident report, NTSB Form 6120.1/2.