EASA SIB NM-10-13
Honeywell FMZ-2000/IC-615/IC-800/IC-1080 and NZ-2000 Primus Epic FMS software
Summary
The FAA Special Airworthiness Information Bulletin SAIB: NM-10-13 provides information regarding the Honeywell FMZ-2000/IC-615/IC-800/IC-1080 and NZ-2000 Primus Epic Flight Management System (FMS) software. It identifies specific part numbers of the software installed on various aircraft models including ATR42, multiple Cessna models, Bombardier CL-600 series, Dassault Falcon variants, Embraer EMB and ERJ series, Gulfstream G series, Hawker Beechcraft Model 4000, Lockheed Martin Model 382G, and Boeing 727 airplanes. The bulletin addresses the transmission of incorrect navigation information during RNAV procedures.
What Changed
This bulletin informs operators about an issue where the FMS software may navigate incorrectly during RNAV STAR procedures if a different runway is selected mid-route. Honeywell issued a Service Information Letter providing guidelines for flight plan modifications on the ARRIVAL page to mitigate this issue. The FAA does not consider this an unsafe condition requiring an airworthiness directive at this time.
Why It Matters
Understanding this information is important for flight crews and operators to prevent navigation errors during RNAV approaches, which could affect flight safety and operational efficiency. Familiarity with Honeywell's recommended procedures helps ensure correct flight plan management and reduces the risk of unintended navigation deviations. Maintenance and compliance teams should be aware of this advisory to support operator training and procedural updates.
What To Do
Operators and owners of affected aircraft should ensure their flight crews review and follow the procedures outlined in Honeywell Service Information Letter D200908000055 dated October 15, 2009. There is no mandatory compliance deadline or airworthiness directive associated with this bulletin, but adherence to the guidance is recommended to avoid navigation issues.
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