Final answer:
The flight attendant or a cabin crew member, trained in safety procedures including manual deployment of oxygen masks at high altitudes.
Step-by-step explanation:
The statement is that you are likely a flight attendant or a member of the cabin crew on an airplane. The reference to opening oxygen compartments manually in the event of automatic failure at 14,000 feet is a safety procedure that cabin crew members are trained for. The responsibilities of cabin crew or flight attendants include a variety of safety-related tasks.
Ensuring the functionality of oxygen compartments in cases of cabin depressurization is crucial for passenger and crew safety. At altitudes above 14,000 feet, supplemental oxygen is necessary, and cabin crew members are equipped with the knowledge and skills to manually deploy oxygen masks should the automatic system fail.