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Message Displays
Operations
Empty To Waypoint Message
The display below shows there is no "To" waypoint in the Active
flight plan. Since the Active flight plan does not contain any waypoints
when the NMC is new, this message will be displayed before the first
"To" waypoint is entered.
Position Sensor Communications Failure Message
When a position sensor stops communicating (after it has established
communications) this message is generated. It becomes an old
message after viewing.
GPS Sensor Command Failure
When the NMC is receiving data from the GPS sensor, but is not
receiving responses to commands sent to the GPS sensor, this message
is generated. This problem indicates that the GPS is not receiving
NMC transmissions and cannot be used for IFR flight. You should
switch to Loran, if available, for IFR flight. It becomes an old message
after viewing and remains an old message even if the condition does
not persist. Service is required.
GPS Self-Test Failure
If the GPS has a self-test failure, a message will be displayed indicating
the cause of the failure in four hexadecimal digits. Contact the II
Morrow service department if this message is displayed. It becomes an
old message after viewing. Use another position sensor until service
can be performed.
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