What is checked during the PDI of the oxygen bottles?

During the Pre-Departure Inspection (PDI) of the oxygen bottles, secure stowage is crucial to ensure that the bottles are safely and securely held in place and ready for use in an emergency. Properly secured oxygen bottles prevent them from moving during flight, which could potentially cause them to become damaged or create a safety hazard. Ensuring that they are correctly stowed is an essential part of the safety protocols used in aviation to maintain operational readiness and protect both crew and passengers.

While visual color indication, airflow rate, and weight and balance are important operational aspects to consider in other contexts, they do not specifically relate to the PDI process of oxygen bottles. Visual color indication may refer to a separate check related to the functionality of the bottles, airflow rate refers to the operational performance during use, and weight and balance pertains to overall aircraft loading rather than just the status of individual oxygen bottles.