Grumman AA5 N81383 accident near Refugio, Texas

Probable cause

The pilot’s improper inflight fuel management, which resulted in a total loss of engine power due to fuel starvation and the pilot’s failure to maintain adequate airspeed, which resulted in the airplane exceeding its critical angle of attack and an aerodynamic stall at a low altitude.

NTSB analysis

The pilot was conducting a personal cross-country flight when he became lost. The pilot reported that he did not understand how to navigate using the GPS that was installed in the airplane before the flight. Instead of continuing to the southeast toward the intended destination, the pilot turned south for the remainder of the flight. After flying for about 1.5 hours, the pilot became concerned about how much fuel remained and decided to land to refuel. The pilot stated that the airplane had a total loss of engine power while in the airport traffic pattern, and that he did not maintain adequate airspeed, which resulted in an aerodynamic stall during the turn from the base leg to final. The airplane sustained substantial damage to the fuselage and empennage during impact.

Examination of the airplane revealed no fuel in the left fuel tank, about 7 gallons of fuel in the right fuel tank, and less than 2 fluid ounces of combined fuel from the electric boost pump, the fuel line to the carburetor, and the carburetor fuel bowl. The pilot reported that the fuel selector valve was positioned to the left fuel tank when the loss of engine power occurred. The loss of engine power was likely due to fuel starvation.

Text from the NTSB. Open the NTSB docket for CEN19LA007 for the full record.