Is the tail cone area pressurized, and what does it contain?

Is the tail cone area pressurized, and what does it contain?

• A. Not pressurized; contains engine covers, pneumatics, fire bottles, computers, ACM and J boxes
• B. Pressurized; contains fuel and hydraulics
• C. Not pressurized; contains seating
• D. Pressurized; contains avionics rack

Answer: (A)

The tail cone area is not part of the pressurized cabin. It sits behind the aft pressure bulkhead, so it stays unpressurized and serves as an equipment bay for components that don’t require cabin pressure. In this space you’ll find items like engine covers, pneumatic hardware, fire bottles, various computers, the Air Conditioning Module (ACM), and electrical junction boxes (J boxes). This arrangement keeps certain systems separate from the main cabin environment while still being accessible for maintenance. Fuel and hydraulic components, seating, and most avionics racks are located in other areas, and the tail cone itself isn’t a pressurized space.

The tail cone area is not part of the pressurized cabin. It sits behind the aft pressure bulkhead, so it stays unpressurized and serves as an equipment bay for components that don’t require cabin pressure. In this space you’ll find items like engine covers, pneumatic hardware, fire bottles, various computers, the Air Conditioning Module (ACM), and electrical junction boxes (J boxes). This arrangement keeps certain systems separate from the main cabin environment while still being accessible for maintenance. Fuel and hydraulic components, seating, and most avionics racks are located in other areas, and the tail cone itself isn’t a pressurized space.