Garmin GTX 345 Operator's Manual - Page 11

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ENSTROM F-28F/280FX RFM SUPPLEMENT

CHAPTER 1. OPERATING LIMITATIONS

1-1. Minimum Equipment

1. The GTX 345 must have the following system interfaces

fully functional in order to be compliant with the

requirements of 14 CFR 91.227 ADS-B Out operations:

Table 1-1. ADS-B Out Required Equipment

Interfaced Equipment

Barometric Pressure Altitude

Source

GPS SBAS Position Source

1-2. ADS-B Out

1. The GTX 345 only complies with 14 CFR 91.227 for ADS-

B Out when all required functions are operational as

indicated by the absence of any ADS-B Out (1090ES)

transmit failure message on the GTX 345 front panel

display.

1-3. Software Version

1. The system must utilize the main software version

shown in Table 1-2. The software version is displayed on

the splash screen during system start-up.

Main SW Version

ADS-B SW Version

2. Subsequent software versions may support different

functions. Check the GTX 335/345 Series Pilot's Guide

for further information.

1-4. Pressure Altitude Broadcast Inhibit

1. Pressure Altitude Broadcast Inhibit (PABI) shall only be

enabled when requested by ATC while operating within

airspace requiring an ADS-B Out compliant transmitter,

per 14 CFR 91.227.

FAA Approved: Mar 28/19

Report No. 28-AC-081

This electronic document is not linked to a subscription for revision control or distribution. Refer to the Optional

Equipment Supplement Publications Status link under the Technical Support Page of the Enstrom Helicopter website

for the current revision level of the Rotorcraft Flight Manual Supplement.

Table 1-2. Software Versions

*or later FAA approved version

Number

Installed

Required

2.12*

2.10*

Jan 15/19

1-1