No fatalities

Engine Power Loss During Initial Climb Due to Fuel Selector Valve Position

Sterling, AK, United States

On May 13, 2012, a MAULE M-4-220C was involved in an aviation accident near Sterling, AK. No fatalities were reported. Investigators recorded the probable cause as: The pilot did not use a preflight checklist, resulting in the fuel selector valve not being turned to the ON position, which caused the engine to lose power during initial climb. This summary draws on records from NTSB; 11 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards

An aircraft impacted terrain after the engine lost power during initial climb. The pilot stated the fuel selector valve was not turned to the ON position because a preflight checklist was not used.

Incident Overview and Pilot Statement During the initial climb, the engine lost power, causing the aircraft to impact terrain. The pilot reported that the fuel selector valve was not placed in the ON position before the flight. The pilot stated that a preflight checklist was not used, which led to the fuel selector valve being left in the incorrect position. The pilot indicated that the accident could have been prevented if a preflight checklist had been used. ## Damage Assessment The aircraft sustained substantial damage to both wings as a result of the impact with the terrain. The source does not provide details on the aircraft type, registration, operator, date, or location.

Probable cause

The pilot did not use a preflight checklist, resulting in the fuel selector valve not being turned to the ON position, which caused the engine to lose power during initial climb.

Contributing factors

Causes

PilotIncorrect use/operationFluid management

Other contributing factors

Inoperative