# 12 - Undocking

### Pre-Launch Shore Operations

```checklist
1. [ ] Briefing With Shipyard And Captain ......... COMPLETED
2. [ ] Machinery Breakers  ....................... TAGGED OFF
3. [ ] Main Engine And Gearbox Cooling Systems ....... FILLED
4. [ ] All Seacock Valves ............................ CLOSED
5. [ ] Air Conditioning Seawater Circuit ...... FILLED/VENTED
6. [ ] Emergency Generator Mode ................... TO MANUAL
7. [ ] All Bilge Wells ..................... DRY/ALARMS CLEAR
```

### Shore Power And Utilities Disconnection

```checklist
8. [ ] Wastewater Shore Discharge Valve .............. CLOSED
9. [ ] Wastewater Hose ......................... DISCONNECTED
10. [ ] Fresh Water Hose ........................ DISCONNECTED
11. [ ] Air Conditioning Units ........................... OFF
12. [ ] Air Conditioning Shore Cooling .......... DISCONNECTED
13. [ ] Shore Power ............................. SWITCHED OFF
14. [ ] Shore Power Cable ....................... DISCONNECTED
```

### Vessel In Water - Systems Commissioning

```checklist
15. [ ] Seawater Valves Integrity .................... CHECKED
16. [ ] Main Sea Chest Valves ......................... OPENED
17. [ ] Forward Sea Chest Valves ...................... OPENED
18. [ ] Central Plate Heat Exchanger .................. VENTED
19. [ ] Seawater Discharge Valves ..................... OPENED
20. [ ] Central Cooling Generator Pumps ................... ON
21. [ ] Power Management System ........................ READY
22. [ ] Primary Generator ...........................  STARTED
23. [ ] Main Switchboard Generator .................... ONLINE
24. [ ] Central Cooling Seawater Pump ............ SET TO AUTO
```

### Main Systems Verification

```checklist
25. [ ] All Circuit Breakers ..................... SWITCHED ON
26. [ ] Seawater Pressure Parameters ........... WITHIN LIMITS
27. [ ] Remaining Generators ......................... STARTED
28. [ ] Fire And Bilge Pumps ................... PRIMED/TESTED
29. [ ] Shaft Cooling Pumps .................... PRIMED/TESTED
30. [ ] Propeller Shaft Seals ........................ CHECKED
31. [ ] Air Conditioning Units ........................ TESTED
32. [ ] Main Engine Controls ........................... LOCAL
33. [ ] Main Engine Cooling System ................. SATISFIED
34. [ ] Stabilisers Lock Pin .......................... UNLOCK
```

### Final Systems Check

```checklist
35. [ ] Bow Thruster Seals ........................... CHECKED
36. [ ] Propeller Shaft Oil Tanks .................... CHECKED
37. [ ] Fin Stabiliser Shaft Seals ................... CHECKED
38. [ ] Steering Gear Shaft Seals .................... CHECKED
```