What happened
During a flight following a refueling stop in Vandalia, Illinois, a Beech 65-A90 experienced a total loss of engine power. Prior to the incident, the aircraft had been serviced with 235 gallons of Jet-A fuel, which was less than the total capacity of 384 gallons. The pilot did not personally supervise the refueling process, relying on the experience of the FBO personnel.
While cruising at an altitude between 7,500 and 10,500 feet, the pilot observed the fuel transfer pump lights illuminate, signaling that the wing tanks were depleted. However, because the nacelle tank gauges indicated they were 3/4 full, the pilot believed there was enough remaining fuel to reach the destination. Approximately three minutes before arrival, both engines flamed out. The pilot subsequently performed a wheels-up forced landing. Upon inspection by a salvage company, the aircraft was found to contain no remaining fuel.
Findings
Investigation into the incident revealed that the pilot had utilized performance charts intended for a Beech 65-A90 rather than the correct charts for a Beech B90. The primary factor in the loss of power was fuel exhaustion.