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ED-109A

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

WG-71
IT & Software
January 2012

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.

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Previous Versions

Title

Date

ED-109A Corr 1 | Software Integrity Assurance Considerations for Communication, Navigation, Surveillance and Air Traffic Management (CNS/ATM) Systems
February, 2021
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
ED-73F
December 21, 2020
latest
ED-76B Corrigendum 1
December 19, 2024
latest
ED-76B with Corrigendum 1
December 19, 2024
latest
ER-049
January 9, 2026
latest
ER-039
July 8, 2025
latest
ER-040
September 8, 2025
latest