Duncan Amends STCs for Challenger, Legacy Models

 - December 23, 2020, 10:00 AM

Duncan Aviation’s Engineering & Certification Services has been busy amending STCs for a couple of Honeywell products on variants of Bombardier Challenger 600 series and Embraer Legacy 600s, the Lincoln, Nebraska-based MRO provider announced.

For the Challenger 601, 604, 605, and 650 the Duncan team amended STCs for the Honeywell flight management system (FMS) and future air navigation system (FANS) that enable owners and operators to upgrade their existing NZ-2010 FMS to version 6.1.1, which it said will solve the FANS latency issue.

“The new software includes a message-latency monitor to detect old controller-pilot datalink communication (CPDLC) messages that may no longer apply,” said Duncan certification coordinator Russ Kromberg. “Prior to the software fix, air traffic control could send a pilot a message, and it was possible for that message to get lost or delayed. With this updated software, pilots will now be notified if the message is out of date.”

Duncan also amended an STC for Honeywell Primus Elite avionics in the Legacy 600 that provides the option to add Primus Elite Advance features. These include upgrades to the Honeywell Integrated Avionics Computer and DU-875 displays for synthetic vision system functionality, as well as display of Metars and TAFs delivered via SiriusXM Weather on Primus Elite’s enhanced moving-map display.