SUPPLEMENTARY
PROCEDURES
NAVIGATION
AIRPLANE
OPERATIONS
MANUAL
1-02-80
Page
14
Code
02
REVISION 40
AOM-145/1114
ABNORMAL PROCEDURES
In case of loss of GPS based navigation capability, alternate non-GPS
procedures at the destination airport must be available.
LOSS OF SIGNAL IN SPACE
During a RNP APCH operations, if at any time GPS signal is lost a
red X is displayed over the Course Deviation Scale and the INTEG
annunciation may be displayed. The APP annunciation is not
automatically removed from the PFD.
If any of these situations happens, if not visual, declare missed
approach.
DEGRADED NAVIGATION
The navigation will be degraded whenever the FMS cannot guarantee
that the accuracy of the system meets the requirements for the current
phase of flight or if the sensors being used for navigation are not
approved for the current phase of flight.
Select the non-affected FMS. For single FMS installations, if not
visual, declare missed approach.
FMS FAILURE
Select the cross side FMS. For single FMS installation, if not visual,
declare missed approach.
FLIGHT DIRECTOR FAILURE
If flight director is lost, If not visual, declare missed approach.
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