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ED-109A Corr 1

ED-109A Corr 1 | Software Integrity Assurance Considerations for Communication, Navigation, Surveillance and Air Traffic Management (CNS/ATM) Systems

WG-71
IT & Software
February 2021

The purpose of this document is to provide guidance for the production of non-airborne software for CNS/ATM systems and equipment that performs its intended function with a level of confidence in safety that complies with approval requirements. Corrigendum 1 corrects and updates minor editorial errors.

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Previous Versions

Title

Date

ED-109A | Software Integrity Assurance Considerations for Communication, Navigation, Surveillance and Air Traffic Management (CNS/ATM) Systems
January, 2012
ED-109 | Guidelines for communication, navigation, surveillance, and air traffic management (CNS/ATM) systems software integrity assurance
March, 2002

Document History

ReferenceDateStatus
ED-109A Corr 1
February 15, 2021latest
ED-109A
January 1, 2012historical
ED-109
March 1, 2002historical
wc-30608-1
wc-30608
ER-049
January 9, 2026
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ER-33
June 10, 2024
latest
ER-12
May 30, 2015
latest
ER-039
July 8, 2025
latest