Which task is critical when handling a malfunctioning elevator or escalator?

Handling a malfunctioning elevator or escalator requires a well-defined response to ensure safety for both the individuals involved and the responding personnel. Lock out tag out is a critical task in this scenario as it prevents the accidental operation of the elevator or escalator while maintenance or rescue efforts are underway. This procedure involves disabling the equipment, effectively ensuring that no one can inadvertently activate it, which could lead to further injury or complications.

Implementing lock out tag out mitigates the risk associated with electrical or mechanical hazards that may still be present when the equipment is malfunctioning. By securing the machinery and tagging it, all personnel can be informed that the equipment is out of service and should not be operated until it is verified as safe.

Other tasks, such as notifying the maintenance team or checking for entrapment, are also important but come after ensuring that the environment is secure. Visual inspections can identify apparent issues but do not provide the safety assurances necessary for personnel working on or around the malfunctioning equipment. Therefore, lock out tag out stands out as the most critical action to take in this situation.