ACT Vent Valve
| 28-28-06 | ACT Vent Valve |
|---|
Applicable to: -
28-28-06-A Use of ACT fuel
| Repair interval | Nbr installed | Nbr required | Placard |
|---|---|---|---|
| C 13.04.2026 | - | 0 | No |
(o)(m)
1)
2)
One or more may be inoperative in the
open position provided that:
1)
The manual transfer from the ACT(s) to the center tank is operative, and
2)
The fuel quantity indications of the ACT(s) and of the center tank are operative on the FUEL SD Page.
28-28-06-B ACT fuel not usable
| Repair interval | Nbr installed | Nbr required | Placard |
|---|---|---|---|
| C 13.04.2026 | - | 0 | No |
(o)(m)
1)
2)
One or more may be inoperative provided that:
1)
The fuel in the ACT(s) is
considered as not usable and as part of the ZFW and is taken into account for CG determination, and
2)
The ACT transfer valve is
secured in the closed position.
28-28-06-E ACT empty
| Repair interval | Nbr installed | Nbr required | Placard |
|---|---|---|---|
| C 13.04.2026 | - | 0 | No |
One or more may be inoperative provided
that there is no fuel in any ACT.