Which of the following actions is prohibited during fueling operations?

During fueling operations, safety is of utmost importance, and certain actions are strictly prohibited to prevent accidents and ensure the safety of personnel, aircraft, and the surrounding environment.

Using a cellphone while fueling poses a significant risk as it can distract personnel from their important duties, potentially leading to dangerous situations. Additionally, cellphones may create spark hazards in certain conditions, which can ignite flammable fuel vapors.

Leaving the fueling unit unattended is another prohibited action because it compromises safety. An unattended fueling operation can result in spills or accidents going unchecked, which can escalate quickly and lead to serious consequences, including fires or environmental damage.

Allowing untrained personnel near the aircraft during fueling operations is also not permitted. Untrained individuals may not understand the risks associated with fueling, nor are they aware of emergency procedures. Having them in close proximity can increase the likelihood of accidents occurring.

Given these critical safety concerns, all of these actions are deemed prohibited during fueling operations to maintain a secure and controlled environment.