Hampton-Henry County

According the commercial pilot and a flight instructor rated check pilot, they were conducting their first long-duration, aerial observation flight in the multiengine airplane, which was recently acquired by the operator. They departed with full fuel tanks, competed the 5-hour aerial observation portion of the flight, and began to return to the destination airport. About 15 miles from the airport, the left engine fuel warning light illuminated. Within a few seconds, the right engine stopped producing power. They attempted to restart the engine and turned the airplane toward an alternate airport that was closer. The pilots then turned on the electric fuel pump, the right engine began surging, and soon after the left engine stopped producing power. They turned both electric fuel pumps to the low setting, both engines continued to surge, and the pilots continued toward the alternate airport. When they were about 3 miles from the airport, both engines lost total power, and they elected to land on a highway. When they were a few feet above the ground, power returned briefly to the left engine, which resulted in the airplane climbing and beginning to roll. The commercial pilot pulled the yoke aft to avoid a highway sign, which resulted in an aerodynamic stall, and subsequent impact with trees and terrain. The airplane sustained substantial damage to the wings and fuselage. Although both pilots reported the fuel gauges indicated 20 gallons of fuel remaining on each side when the engines stopped producing power, the flight instructor noted that there was no fuel in the airplane at the time of the accident. In addition, according to a Federal Aviation Administration inspector who responded to the accident site, both fuel tanks were breached and there was no evidence of fuel spillage.

About two minutes into the flight, the pilot noticed a high cylinder head temperature on the right engine. The pilot opened the cowl flap doors and the cylinder head temperature dropped 200 degrees. When the pilot noticed a reduction in right engine power, he elected to shut down the engine. The copilot was instructed to secure the right engine in accordance with the emergency procedures. Unable to maintain altitude, the pilot selected an emergency landing to a large open field, and the landing gear collapsed during the landing. Examination of the airplane at the accident site disclosed that the engine cowl flaps on both engines were in the open position. Examinations of the right engine subsystems failed to disclose a mechanical malfunction or component failure. A review of the normal and emergency procedures for the aircraft disclosed that the cowl flaps normal position for the shutdown engine is closed. A review of the aircraft performance data revealed that the airplane was capable of maintaining flight and a climb attitude with one engine. There was no cargo on the airplane. During the pilot's subsequent type rating reexamination in the Convair 240-27, the pilot failed to demonstrate a satisfactory level of knowledge in emergency procedures during the oral examination. The pilot subsequently surrendered the Convair 240-27 type rating to the FAA.