List a key safety practice when operating GSE near aircraft.

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Safe operation of ground service equipment near aircraft relies on maintaining safe clearances, following signals, using wheel chocks, and ensuring equipment is grounded. Keeping safe clearances prevents contact with aircraft surfaces, engines, and other critical areas. Following signals from the ground crew or marshaller ensures you move only when it’s safe and the aircraft is in the correct state for operations. Using wheel chocks stops unintended movement of either the aircraft or the GSE, which is especially important on slopes or during towing. Grounding the equipment prevents static electricity buildup and sparks, a vital precaution near fueling or other flammable vapors.

Ignoring signals and proceeding near aircraft ignores essential coordination and can lead to collisions or injuries. Disabling grounding to speed things up creates a real fire or explosion hazard due to static discharge. Limiting near- aircraft access to only the tug operator removes necessary teamwork and oversight, increasing the chance of an unsafe situation.