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Page 5-4
G1000 System Maintenance Manual
Rev. A
190-00903-00
Table 5-1. (continued)
XPDR FAIL
GTX 33 or
33D
•
Check PFD1 Alert Window for GIA1/2 and GTX 33
configuration, software or failed data path error
messages. Correct any errors before proceeding.
•
Perform a SET>ACTV configuration reset on the GTX
Transponder Configuration page for each installed
GTX.
•
Verify the aircraft registration is entered for the
transponders on the GTX Transponder Configuration
page.
•
Check the GIA and GTX racks for connector pin faults
(push-back or bent) on the RS-232 interconnect lines.
•
Replace the GTX 33/33D.
•
If problem persists, replace the GIA.
AIRSPEED FAIL
ALTITUDE FAIL
VERT SPEED FAIL
GDC 74B
•
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 PFD1 Alert Window for PFD1/2, MFD or GDC
configuration, software or failed data path error
messages. Correct any errors before proceeding.
•
Inspect GDC 74B pitot/static ports and plumbing for
blockage.
•
Check GDC 74B configuration settings for the PFDs,
MFD, GIA1, and GIA2. Reload if unsure they are
correct.
•
If PFDs, MFD, and GIA configuration settings are
correct, replace the GDC 74B.
•
If problem persists, replace the GDC 74B
configuration module.
OAT
and
TAS
GTP 59
•
Check OAT probe wiring, probe, and connectors for
faults or damage.
•
Replace GDC 74B Config Module.
•
Replace the GTP 59.
•
If problem remains. replace GDC 74B.
