AFT Cargo Isolation Valve
| 21-28-04 | AFT Cargo Isolation Valve |
|---|
Applicable to: -
21-28-04-A Inoperative in the closed position
| Repair interval | Nbr installed | Nbr required | Placard |
|---|---|---|---|
| D 01.08.2026 | 2 | 0 | No |
(o)
1)
2)
One or
both may be inoperative in the closed position provided that:
1)
Both AFT cargo isolation valves are checked
closed, and
2)
AFT ISOL VALVE pb-sw FAULT light is checked operative.
21-28-04-B Deactivated in the closed position
| Repair interval | Nbr installed | Nbr required | Placard |
|---|---|---|---|
| D 01.08.2026 | 2 | 0 | No |
(o)(m)
One or both may be inoperative provided
that both AFT cargo isolation valves are deactivated in the closed
position.