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 TM 55-1925-273-10-2
0114 00
ENGINE ROOM VENTILATION SUPPLY FIRE FLAP ASSEMBLY
1.
Gain access to the inside of the stack on the 01 level by loosening the four dogs (figure 5, item 2) and opening the
watertight hatch (figure 5, item 3).
2.
Have one crewmember push the quick release T handle (figures 3 and 4, item 2) all the way in while a second crewmember
moves the engine room ventilation supply fire flap assembly handle (figure 5, item 4) to the OPEN position.
3.
Close the watertight hatch (figure 5, item 3) and tighten the dogs (figure 5, item 2).
4.
Perform steps 1-3 for the engine room ventilation supply fire flap assembly in the opposite stack.
MAIN ENGINE COMBUSTION AIR FIRE FLAP ASSEMBLY
1.
Gain access to the inside of the stack on the 01 level by loosening the four dogs (figure 5, item 2) and opening the
watertight hatch (figure 5, item 3).
2.
Have one crewmember push the quick release T handle (figures 3 and 4, item 1) all the way in while a second crewmember
lifts up on the main engine combustion air fire flap assembly handle (figure 5, item 5) and secures it in the OPEN
position with the quick release latch (figure 5, item 6).
3.
CLOSE the watertight hatch (figure 5, item 3) and tighten the dogs (figure 5, item 2).
4.
Perform steps 1-3 for the engine room ventilation supply fire flap assembly in the opposite stack.
CLOSE EDG ROOM FIRE FLAP ASSEMBLIES
1.
Ensure that all personnel are clear of the EDG room.
2.
Secure the watertight door (figure 7, item 4) to the EDG room.
3.
Pull OUT on both T handles (figure 7, item 3) to deploy the EDG room fire flaps (figure 7, items 1 and 2).
4.
Notify the pilothouse of the fire condition.
OPEN EDG ROOM FIRE FLAP ASSEMBLIES
1.
Ensure that the fire is out and that the proper command authority has authorized entry into the space.
2.
After the space has been ventilated, and appropriate damage control measures have been completed (TM 55-1925-273-
SDC), the EDG room fire flaps (figure 7, items 1 and 2) may be reset.
3.
Reset the EDG room fire flaps (figure 7, items 1 and 2) by pulling UP from the bottom. The sections (figure 9, item 1)
of the EDG room fire flap should fold up like a fan as they are raised. Once the EDG room fire flaps are fully raised, the
latch assembly (figure 9, item 2) will automatically latch them into place.
1
2
Figure 9. Opening the EDG Room Fire Flaps
END OF WORK PACKAGE
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