Which manual contains a Flight Planning section for required O2 Quantity?

The Performance Manual is the correct reference for the Flight Planning section regarding required oxygen (O2) quantity. This manual encompasses various performance parameters essential for safe flight operations, including calculations and guidelines for the required onboard oxygen levels depending on the altitude and duration of the flight. It is crucial for pilots to understand these requirements to ensure the safety and well-being of everyone on board, especially in situations where cabin pressure may decrease.

The other manuals serve different purposes; the Safety Manual may include emergency procedures and safety protocols but does not focus specifically on flight planning requirements like oxygen. The Operations Manual outlines standard operating procedures and checks but typically does not delve into performance data in detail. The Technical Manual is primarily concerned with the aircraft's systems and maintenance information, rather than operational parameters such as required oxygen quantities for flight planning.