ATA 47 - INERT GAS SYSTEM

• The Fuel Tank Inerting System (FTIS) includes two sub-system- The Conditioned Service Air System (CSAS),&The Inert Gas Generation System (IGGS).

• If the oxygen sensor senses an oxygen rate higher than 12%, the ICUde-energizes the IGGS Isolation Gate Valve solenoid and the DFSOV solenoid to close the IGGS Isolation Gate Valve and the DFSOV.

• The FTIS does not operate on the ground, located on pack 1 compartment.

• Engine 1 is the primary bleed source and Eng 2, through the X-Bleed valve, is the

secondary bleed source.