Avionics
Technical hurdles delay Primus Epic program
Ongoing software integration problems are forcing at least two airframe manufacturers into the unenviable position of having to stretch aircraft certificat

Ongoing software integration problems are forcing at least two airframe manufacturers into the unenviable position of having to stretch aircraft certification schedules to give Honeywell engineers time to troubleshoot a variety of technical issues that are manifesting themselves in the Primus Epic avionics system.

In development for the past seven years, Primus Epic is the all-glass integrated avionics platform selected by manufacturers for a number of emerging aircraft programs, including the Dassault Falcon 900EX with Primus Epic EASy avionics and the fly-by-wire Embraer 170 regional jet, both of which will be delayed by several months to accommodate needed software changes and additional flight testing, according to the manufacturers. Other in-development aircraft that fly with Primus Epic are the Gulfstream G550, Bell/Agusta AB139, Cessna Citation Sovereign and Raytheon Hawker Horizon.