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Question about the "coupe-feu" switch


Toertchen

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Hi there,

 

After reading and reading the extract from the Dassault Aviation Manual and an article from BEAD-air (investigation of an aircraft accident) - you can find it under the name "BEAD-air-A-2008-009-A.pdf" -, i've got a question.

 

In the actual Flight Manual from RAZBAM they wrote on page 24:

"5. Frie Extinguisher - Activates the engine fire extinguisher."

Is this term correct? Does that mean an extinguishing medium is by activation injected into the engine?

 

Or is the term "shut-off valve" correct?

In the article "BEAD-air-A-2008-009-A.pdf" you can see and read that it is a valve, which only interrupts the fuel supply to the engine.

 

The last would make some sense, so in Dassaults Manual you can read:

- in the preflight checklist that the coupe-feu switch must be activated (open cover, switch to the left)

- in the engine start checklist that you have to deactivate the switch (switch to the right, cover closed) before engine start and activating the 3 boost pumps

- in the parking checklist that you have to switch it back on (open cover, switch to the left) after shut down your engine

 

 

At least some pictures from the report:

attachment.php?attachmentid=132118&stc=1&d=1451908154

attachment.php?attachmentid=132119&stc=1&d=1451908154

attachment.php?attachmentid=132120&stc=1&d=1451908154

1462911442_FuelSystem.png.550b4f54a124cf52e835d3cf1d7004c2.png

Valve.png.60593b199ba999b4bff031b78f00a1c0.png

coupe-feu-switch.png.2f17fc78acfe317360cd7f03aa88d3ae.png

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