Emergency Procedures; General; Abnormal Procedures - Garmin GTX 345 Operator's Manual

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3-1. General

Refer to the basic RFM.

3-2. Abnormal Procedures

When the GPS/SBAS receiver is inoperative or GPS position
information is not available or invalid, the GTX will no
longer be transmitting ADS-B Out data.
Figure 3-1 shows when ADS-B is not transmitting.
Figure 3-2 shows if both the transponder and ADS-B are
not transmitting.
Figure 3-2. ADS-B 1090 and Transponder Failed Screen
1. In the event of either a "NO 1090ES TX" or a
"TRANSPONDER FAILED" annunciation, verify valid
position with interfaced GPS position sources.
FAA Approved: Dec 19/18
Report No. 28-AC-078
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ENSTROM 480B RFM SUPPLEMENT
CHAPTER 3. EMERGENCY PROCEDURES
Figure 3-1. ADS-B 1090 Failed Screen
level of this Rotorcraft Flight Manual Supplement.
3-1
Dec 3/18