Benefits OF monitoring
Monitoring system of the AFS fulfills the
following functions:
- Fault isolation: Data are
accessible in flight and on the ground by pressing the DISPLAY pushbutton
switch on the Maintenance Test Panel (MTP). It is to be noted that this
pushbutton switch is normally active in flight in many aircraft.
- Test after replacement of a unit:
This test is performed on the ground by ground maintenance personnel in
order to check correct operation of a system after replacement of a unit.
This test called AFS TEST. This test is inhibited in flight.
- LAND mode test: This test is
performed on the ground only (inhibited in flight), to check availability
of CAT 3 capability. If aircraft is operated in actual CAT 3, this test is
recommended after removal/installation of the many AFS components.
- Complex fault isolation:
This function is activated on the ground in the event of complex failure
detection.
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