Garmin Diamond DA40, Maintenance Manual

Page: 117 / 156

G1000/DA 40 System Maintenance Manual Page 7-23
190-00303-03 Revision 6
7.6.3 GDC 74A Test
Verification of the altimeter and airspeed must be performed using a pitot/static ramp tester. The static
port and altimeter must be verified in accordance with Title 14 of the Code of Federal Regulations (CFR)
§ 91.411 and Part 43 Appendix E. The PFD must be in Configuration mode and the MFD must be in
Reversionary mode for performing the tests as outlined in Part 43 Appendix E.
To prepare the G1000 System for Part 43 Appendix E testing:
1. Start the G1000 system in normal mode.
2. Remove power to the PFD by pulling the circuit breaker labeled PFD.
3. Turn the PFD on in Configuration mode by pressing and holding the ENT key on the PFD while
applying power.
4. Release the ENT key after “INITIALIZING SYSTEM” appears in the upper left corner of the
PFD.
CAUTION
Configuration mode contains certain pages and settings that are critical to aircraft
operation and safety. These pages are protected and cannot be modified, unless the
technician is properly authorized and equipped. However, most protected pages are
viewable to allow system awareness for troubleshooting.
5. Using the outer FMS knob on the PFD turn to the GRS page group. Use the B ALT field for all
CFR Part 43 Appendix E tests for G1000 altitude.
6. Place the MFD in Reversionary mode by pressing the red “display backup” button on the GMA
1347 Audio Panel. Baro settings can then be read from the MFD for the CFR Part 43 Appendix E
tests.
After completing the tests specified by § 91.411 and Part 43 Appendix E, return the MFD to normal mode
by pressing the red “display backup” button on the GMA 1347. Return the PFD to normal mode by
shutting off the master switch. Upon restart the PFD will enter normal mode.