These STC amendments will allow operators of Embraer EMB-135BJ aircraft to upgrade their existing NZ-2010 FMS from version 6.1 to version 6.1.1 and certify the Mode V Glidepath deviation alerting and annunciation for precision approaches.
30 July 2021: Duncan Aviation recently amended two Supplemental Type Certificates (STCs) for the Embraer Legacy 600. The first STC (ST01856WI) is for the Honeywell Aerospace Flight Management System (FMS) and the second STC (ST01858WI) is for Future Air Navigation System (FANS). These STC amendments will allow operators of Embraer EMB-135BJ aircraft to upgrade their existing NZ-2010 FMS from version 6.1 to version 6.1.1 and certify the Mode V Glidepath deviation alerting and annunciation for precision approaches.
ST01856WI updates the Honeywell FMZ-2000 FMS to FMZ-2010 and allows for LPV/WAAS (Localizer Performance with Vertical Guidance/Wide Area Augmentation System) and Vertical Navigation (VNAV) capabilities. The amendment certifies the use of the Mode V Glidepath monitoring, alerting, and annunciation for LPV approaches. The new software gives audio and visual alerts when a pilot’s approach is too low.
The amendment to ST01858WI resolves the issue of latency with FANS. The new software includes a message latency monitor to detect old Controller Pilot Data Link Communications (CPDLC) messages that may no longer apply.
Duncan Aviation Certification Coordinator Russ Kromberg said, “Prior to the software fix, Air Traffic Control (ATC) could send a pilot a message, and it was possible for that message to get lost or delayed. Effectively, the upgrade time-stamps the message so pilots knows which messages are current. Although there were many reasons our customers wanted these upgrades, the primary concern was to make CPDLC fully compliant with current FANS standards for flying the North Atlantic Tracks (NAT).”
Although these upgrades were completed at Duncan Aviation’s Satellite Shop in Houston, Texas, they can be performed at any of the company’s 28 Satellites or workaway stations or at any of the three full-service facilities in Battle Creek, Michigan, Lincoln, Nebraska, or Provo, Utah.
