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LMM for the Kodiak 100 Page 4-5
190-02102-00 Rev.4
3. Check that no related alert messages are present on PFD1 (press the ALERTS
softkey).
4. Isolate the fault to an LRU. Replace this LRU and confirm the resolution of the
annunciation.
5. Isolate the fault to an LRU. Replace this LRU and confirm the resolution of the
annunciation.
6. Check the AFCS wiring.
7. Also, see the information later in this section for GRS 79 troubleshooting
information
4.3.5 Altitude (Number 5)
1. Inspect the integrity of the GDC 72 pitot/static plumbing.
2. Inspect the pitot/static ports and associated equipment for faults.
3. Check the GTP 59 probe if there is a TAS failure.
4. Check the GDC 72 configuration settings for the PFDs, MFD, GIA1, and GIA2.
5. If the PFDs, MFD, and GIA configuration settings are correct, replace the GDC
72 configuration module.
6. Replace the GDC 72 if the problem persists.
4.3.6 Vertical Speed (Number 6)
Same as 4.3.5.
4.3.7 TMR (Number 7)
Same as 4.3.1 and 4.3.2.
4.3.8 UTC (Number 8)
Same as 4.3.1 and 4.3.2.
4.3.9 GPS LOI (Loss of Integrity) (Number 9)
1. Check for GIA1/2 configuration, software or failed data path error messages.
Correct any errors before proceeding.
2. Make sure the aircraft is located where the GPS antennas have a clear view of
the sky.
3. Check for possible external interference to the GPS receivers.
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