Gia Failure Test; Gdu Failure Test - Garmin G1000 Maintenance Manual

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8.2

GIA FAILURE TEST

Step
Single GIA Failure Conditions:
1. Remove power from GIA1.
2. Check for desired results.
3. Restore power to GIA1. Allow to re-
acquire satellites.
4. Remove power from GIA2.
5. Check for desired results.
6. Restore power to GIA2.
Dual GIA Failure Conditions:
1. Remove power from both GIA units.
2. Check for desired results.
3. Restore power to both GIA units.
8.3

GDU FAILURE TEST

Step
MFD Display Failure Conditions:
1. Remove power from MFD.
2. Check for desired results.
3. Restore power to MFD.
PFD Display Failure Conditions:
1. Remove power from PFD.
2. Check for desired results.
3. Restore power to PFD.
G1000 System Maintenance Manual
190-00907-00
Desired Result
•
GIA1 Failure - Transponder 1 may flag invalid in
a dual transponder installation. Third-party LRUs
connected to only GIA 1 may also show a failed
condition.
•
GIA2 Power Failure - Transponder 2 may flag
invalid in a dual transponder installation. Third-
party LRUs connected to only GIA 2 may also
show a failed condition.
Dual GIA Failure – For a dual GIA failure, only the
following shall occur:
•
COM/NAV1 & COM/NAV 2 fields flag invalid.
•
GPS CDI flags INTEG on PFD.
•
NAV1 and 2 CDI loses deviation bar.
•
XPDR field flags invalid on PFD.
•
Engine Instrument field flags invalid on MFD.
•
All AHRS & ADC fields valid.
Desired Result
•
Transponder 2 may flag invalid in a dual
transponder installation. Third-party LRUs
connected to only GIA 2 may also show a failed
condition.
•
Transponder 1 may flag invalid in a dual
transponder installation. Third-party LRUs
connected to only GIA 1 may also show a failed
condition.
Page 8-3
Rev. B