97-14 LRU Installation – GMU 44 Magnetometer
D. Installation
1. Turn battery & avionics switches off and pull out EFIS (5 amp) circuit breaker at
panel.
2. Position MS21919WDG12 clamp on GMU 44 magnetometer connector.
3. Install hardware securing magnetometer to F950-4 bracket. Verify security.
4. Connect F951-1 harness assembly to magnetometer harness at connectors.
5. Push in EFIS circuit breaker (5 amp) at panel. Turn battery & avionics switches on.
NOTE
Software loading and/or magnetic calibration may be required.
6. Perform appropriate functional checks per Garmin G500H Instructions for Continued
Airworthiness. Turn battery & avionics switches off.
7. Install tailcone cowling per § 53-23.
E. Scheduled Maintenance and Inspections
Refer to Garmin G500H EFIS Maintenance Manual, Section 5 Periodic Maintenance.
F Special Maintenance and Inspections
1. Turn battery & avionics switches off. Open circuit breaker panel and remove
tailcone cowling per § 53-23.
2. Inspect condition of and verify no obvious damage to Garmin GMU 44 magnetometer,
circuit breaker, and wiring. Verify no loose, chafed, or broken wires or terminals.
Verify no evidence of arcing. Verify equipment security.
3. Secure circuit breaker panel. Perform ground checks per Part D steps 5 thru 7.
MAY 2015 Chapter 97 Avionics Page 97.5
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