The pressurization of tanks is maintained by the fuel:
Domanda 456, Aircraft General Knowledge - Airframe, Systems, Powerplant - ATPL - Airline Transport Pilot license
| Tank Drains. |
| Top off unit. |
| Vent system. |
| Dump System. |
| Tank Drains. |
| Top off unit. |
| Vent system. |
| Dump System. |
