What does PBE stand for in the context of flight operations?

In the context of flight operations, PBE stands for Protective Breathing Equipment. This equipment is essential for flight attendants and crew to use in emergencies, particularly in situations involving smoke or toxic fumes in the cabin. The primary function of PBE is to provide a safe and clean air supply to ensure that crew members can assist passengers effectively during an emergency evacuation or incident.

Protective Breathing Equipment usually consists of a protective hood with a built-in oxygen supply, which enables the user to breathe while navigating through potentially hazardous environments within the aircraft. This critical piece of safety equipment exemplifies the emphasis on crew safety and preparedness on flights. The other options suggest different meanings, but they do not align with the standard terminology used in aviation safety protocols.