What is the minimum distance fuelers must be from the engine before starting it?

The minimum distance that fuelers must maintain from the engine before starting it is 50 feet. This requirement is designed to ensure safety during operations near running engines, which can pose a significant risk due to the potential for jet blast, fuel ignition, and other hazards associated with aircraft operation. By maintaining this distance, fuelers reduce their exposure to these risks, thereby enhancing safety protocols and preventing accidents in a high-stakes environment like an airport or aircraft maintenance facility. This distance provides a buffer that helps protect fuelers from the force and heat generated when the engine is engaged, ensuring safe operations while fueling an aircraft.