DAC International is in the final stages of securing an STC for the Citation Excel/XLSto replace the aging LCR-93 AHRS, which has been out of production since 2002. 

Dual transponder system ADS-B upgrade in Part 25 aircraft

Installation of 965-0976-003-226-226 Software with Runway Awareness Advisory System (RAAS) activation option on Honeywell MK V Enhanced Ground Proximity Warning System (EGPWS)

Upgrade of Honeywell Primus II System for ADS-B Out with existing Universal UNS-1Espw Position Source or installation of stand-alone Honeywell KGS-200 position source

Installation of -218-218 software with Runway Awareness Advisory System (RAAS) activation option on Honeywell MK V Enhanced Ground Proximity Warning System (EGPWS).

Installation of a Honeywell TCAS 2000 traffic alert and collision avoidance system (TCAS II) in aircraft equipped with Honeywell primus 2000 Radios.

Installation of a pedestal modification.

Installation of a Honeywell AlliedSignal Mark V Enhanced Ground Proximity Warning System.

Installation of Aircell High Speed Internet System (AHSI) with Wireless Local Area Network (WLAN).

Installation of Honeywell Enhanced Ground Proximity Warning System (EGPWS), with Windshear Detection and Terrain Display in accordance with Duncan Aviation Master Drawing List DA0205-02R revision A, dated September 23, 2002 or later FAA approved revision.