A-320 QB Air Cond /Pressurization/Ventilation Auxiliary Power Unit A320 Automatic Flight A320 Communications A320 Doors A320 Electricals A320 Engine A320 Equipment A320 Fire Protection A320 Flight Controls A320 FMS and Navigation A320 Fuel A320 Hydraulic A320 Ice and Rain A320 Indicating and Reporting A320 Landing gear A320 Oxygen A320 Pneumatic A320