Avidyne Corporation - Flight Management Computing Software System [Piper PA-46R-350T / Cirrus SR20, SR22]
- Published
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators and maintenance personnel are recommended to follow the guidance in Avidyne Service Information Letter SIL Number 606-00083-009 to address the software issue. No mandatory compliance deadline is specified, but timely action is advised to prevent potential altitude display errors. For further information, stakeholders should contact the FAA Aerospace Engineer or Avidyne Corporation as provided in the bulletin.
Summary
The FAA Special Airworthiness Information Bulletin SAIB: CE-11-09 informs operators and maintenance personnel about a software issue in the Avidyne Corporation Flight Management Computing Software System installed on Piper PA-46R-350T and Cirrus SR20/SR22 aircraft. The bulletin highlights a faulty transition logic causing incorrect altitude limits to be displayed on the Flight Management System. This issue affects aircraft equipped with the Avidyne Entegra Integrated Flight Display system, part number 700-00083-( ), across any software release.
What changed
This bulletin introduces awareness of a software fault in the Avidyne Flight Management System that results in incorrect altitude constraints being shown for departure, arrival, and approach procedures. It does not mandate corrective action but recommends compliance with Avidyne Service Information Letter SIL Number 606-00083-009. The FAA has determined that this issue does not currently warrant an airworthiness directive under 14 CFR part 39.
Why it matters
The incorrect altitude constraints displayed by the Flight Management System could lead to pilot confusion or misinterpretation of altitude limits during critical flight phases such as departures, arrivals, and approaches. Aviation professionals, including operators and maintenance teams, need to be aware of this issue to ensure flight safety and maintain accurate navigation data. Understanding this bulletin helps compliance teams assess risk and plan for software updates or service information compliance.
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