G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
Page 5-19
190-00716-01
Revision 1
Invalid Data Field
Associated
LRU(s)
Solution
GPS LOI
GIA1 or GIA2
•
Ensure that a cell phone or a device using cell phone
technology is not turned on (even in a monitoring state)
in the cabin.
•
Check GPS1 and GPS2 signal strength on AUX
page 4. Refer to GIA GPS section if GPS can not
acquire a position lock for troubleshooting.
•
Check corresponding GPS antenna and cable for
faults.
•
Check Ethernet interconnect between the PFD1 to
GIA1 or PFD2 to GIA2 for faults.
•
Swap GIA1 and GIA2, to verify location of problem:
9
If problem follows the GIA, replace the GIA.
9
If problem persists, replace the PFD1 or PFD2.
XPDR FAIL
GTX 33
•
Check GTX 33/33D configuration settings for GIA1 and
GIA2.
•
Check GTX 33D/GIA1 interconnect.
•
Check GTX 33D/GIA2 interconnect.
•
Perform a SET>ACTV configuration reset on the GTX
Config page for each GTX, and verify the aircraft
registration is present.
•
Replace GTX 33/33D.
9
If problem persists, replace GIA.
TAS FAIL
AIRSPEED FAIL
ALTITUDE FAIL
VERT SPEED FAIL
GDC 7400
•
Inspect GDC 7400 pitot/static plumbing integrity.
•
Inspect pitot/static ports and associated equipment for
faults.
•
For TAS failure, also check GTP 59 probe.
•
Check GDC 7400 configuration settings for the PFDs,
MFD, GIA1, and GIA2.
9
If PFDs, MFD, and GIA configuration settings are
correct, replace the GDC configuration module.
9
If problem persists, replace the GDC 7400.
OAT
GTP 59
•
Check OAT probe wiring and connectors for faults.
•
Check GDC config module wiring for damage, replace
if any is found.
•
Replace GDC config module
•
Replace GDC 7400 with a known good unit:
9
If problem persists, replace the GTP 59
.
Summary of Contents for Cessna Caravan G1000
Page 2: ...This page intentionally left blank...
Page 89: ......
