No fatalities

1 May 2009: RANS S-7 — Errol Spaulding — Atomic City, ID

Atomic City, ID, United States

On 1 May 2009, a RANS S-7 operated by Errol Spaulding was involved in an aviation accident near Atomic City, ID. No fatalities were reported. Investigators recorded the probable cause as: The pilot/owner's failure to maintain adequate fuel level in the header tank, resulting in fuel starvation due to unporting of the fuel pick-up during climb out. This summary draws on records from NTSB; 6 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 1778583330Data APIEditorial standards

A pilot and passenger experienced an engine power loss during climb from a touch-and-go. The owner pilot attempted a forced landing, resulting in a hard landing that caused substantial damage to the tail wheel and rudder area. Fuel starvation due to low header tank level was cited.

Accident Sequence

The pilot/owner and a pilot-rated passenger flew to a local airport for a brief stop, then continued to another nearby airport where the passenger performed a touch-and-go takeoff. During the climb out after the touch-and-go, the pilot began a slight right turn when the engine lost power at approximately 250 feet above ground level (agl). The owner pilot took control, turned back to the left, and attempted to land on the remaining runway. He leveled off slightly at about 20 feet agl and then flared for landing.

Hard Landing and Damage

The airplane landed hard on the north side of the runway, causing the right wheel to break off. The landing gear subsequently dug into the turf, and the airplane spun 180 degrees, collapsing the right main landing gear. The airframe around the tail wheel and rudder sustained substantial damage.

Fuel System Configuration

According to the owner, the airplane was equipped with a header tank that served as the sole fuel supply for the engine, in addition to wing tanks that supplied the header tank. An electric fuel pump was used to manually transfer fuel from the wing tanks to the header tank. The owner stated that he typically does not allow the header tank to drop below half full because the fuel pick-up port for the engine-driven pump is located at the front of the tank.

Pilot Statements

The owner indicated that he probably allowed the fuel level in the header tank to become too low during this flight. During the climb out with the nose elevated, he surmised that the header tank fuel pick-up became unported, leading to a loss of engine power.

Probable cause

The pilot/owner's failure to maintain adequate fuel level in the header tank, resulting in fuel starvation due to unporting of the fuel pick-up during climb out.

Contributing factors

Causes

Fluid managementPilot

Other contributing factors

Incorrect use/operation