24. Ensure that the pop-up cal result window shows 'PASSED', press 'OK' to confirm message
(refer to Figure D-9).
25. Return the pressure control system to ambient pressure before disconnecting the pitot and static
lines from the GDC 74A.
26. Click on 'Exit' in the upper left corner to exit the program.
27. The Field Calibration is now completed, the unit may be installed in the aircraft (per the
instructions in this manual) to perform the operational system testing portion of 14 CFR Part 43
Appendix E.
Page D-60
Revision D
Figure D-8. Program Calibration to Unit Screen
Figure D-9. Field Calibration Result Screen
G900X/G950 Installation and Maintenance Manual – Troubleshooting
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