28-12 Tank Venting System
- 28-12-01 Overpressure Protector between the Inner and the Outer Tank
- 28-12-02 Overpressure Protector in the Vent Surge Tank
- 28-12-03 Overpressure Protector in the Inner/Wing Tank
- 28-12-04 Overpressure Protector between the Center and the Inner/Wing Tank
- 28-12-05 Overpressure Protector in the ACT (If Installed)