When must a FA conduct an emergency equipment check?

A flight attendant must conduct an emergency equipment check at various critical times to ensure that all safety equipment is functional and accessible. When considering the first flight of the day, it's essential that the equipment is in working order before any passengers board the aircraft, ensuring immediate readiness in case of emergencies. After any crew change, conducting the equipment check serves as a vital procedure to familiarize the new crew members with the emergency equipment and verify its supply and functionality. Additionally, checking the equipment when the aircraft has been left unattended is crucial, as it helps confirm that nothing has been disturbed or removed during that time, maintaining the integrity of safety protocols.

Therefore, since all the situations listed ensure the safety and preparedness of the aircraft and its crew, a flight attendant must perform an emergency equipment check during each of these instances. This comprehensive approach emphasizes the importance of safety and readiness at all stages of the flight operation.