In airline operations, what does "OHB" refer to specifically?

The term "OHB" in airline operations specifically refers to overhead bins. These are storage compartments located above the passenger seats in the cabin area, designed to hold passengers’ personal items, such as carry-on luggage, jackets, and other belongings during the flight.

Understanding the purpose of overhead bins is essential for airline operations, particularly concerning passenger safety, comfort, and cabin management. Passengers typically use these bins to store their items within easy reach while keeping the aisle clear and maintaining a safe environment during boarding and disembarkation.

Although cabin lighting control, emergency exit locations, and areas for flight safety equipment are significant components of an aircraft's operation and safety systems, they do not reflect the specific function of "OHB". By focusing on overhead bins, the significance in passenger convenience and safety becomes clear.