EFD1000 E5 Dual Electronic Flight Instrument (EFI) Install Manual
DOCUMENT # 900-00041-001
PAGE 196-226
REVISION D
© Copyright 2019 Aspen Avionics Inc.
The EA100 Adapter is an optional sub-component of the required EFD1000 E5 system designed to
replace the Bendix King KG-258, KI-254, KI-255, KI-256 and the Century 52D66, 52D67, 52D166,
52D167, 52D266, 52D267 and 52C77 (hereafter known as Century AI) attitude indicators when
connected to the approved autopilots in this appendix. The EA100 converts the digital pitch and roll
signals of the EFD1000 into equivalent analog signals.
The EA100 is approved to replace the King or Century AI for any autopilot model shown in the wiring
diagrams of this appendix.
Removal of the KG-258, KI-254 and Century AI (without flight director, 52C77) is approved by this STC
when an EA100 is installed.
KI-255, KI256 and Century AI/FD indicators must not be removed as the EFD1000 E5 cannot display FD
commands. Therefore these indicators must be relocated to the area within the pilot’s primary
maximum field of view in accordance with FAR 23.1321(a), see Section 4.4.3
E1 General Limitations
The EA100 is only eligible to replace the analog outputs from a KI-254/255/256 or KG-258, or the
Century AI flight command Indicator to a compatible autopilot, as identified by the wiring diagrams in
this appendix.
NOTE
A Pre-Installation Operational Check is recommended to verify that the autopilot performance
is satisfactory prior to starting the EA100 installation. Autopilot problems should be corrected
prior to the EA100 installation as troubleshooting post installation autopilot issues will be
much easier if the autopilot performance was base lined prior to install. See Pre-installation
Operational Check in this Appendix.
