# Proposed AD FAA-2023-1716: Thales AVS France SAS Flight Management Computer Navigation Modules

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2023-21-05
- Products: Thales AVS France
- Product type: Appliance
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 24, 2023, 88 FR 57904
- Comments due: October 10, 2023
- Became: [AD 2023-21-05](https://openairdocs.org/ad/2023-21-05)
- Docket: FAA-2023-1716 (https://www.regulations.gov/docket/FAA-2023-1716, where comments are filed)
- Project: MCAI-2022-00168-Q
- FR document: 2023-18116
- Official PDF: https://openairdocs.org/files/sha256/ec/2d/ec2d36dbbb9f41d0eaeb3b3aa56bb7b6aa26038f042aefc70ab083d4e5775b46 (from https://www.govinfo.gov/content/pkg/FR-2023-08-24/pdf/2023-18116.pdf)
- Federal Register: https://www.federalregister.gov/documents/2023/08/24/2023-18116/airworthiness-directives-thales-avs-france-sas-flight-management-computer-navigation-modules
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2023-18116-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2023-1716

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Thales AVS France SAS (Thales) flight management computer navigation modules (FMC2 NAVM) installed on, but not limited to, airplanes. This AD was prompted by reports that, due to software issues, certain FMC2 NAVM navigation modules provide erroneous data to the flight management computer, compromising safe flight of the airplane. This proposed AD would require revising the existing aircraft flight manual (AFM) for your airplane and updating the navigation database. This proposed AD would also prohibit installing a database unless certain procedures were removed. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Aug 24, 2023: Notice of proposed rulemaking (NPRM). (first notice), FR document 2023-18116, comments due Oct 10, 2023 (https://www.federalregister.gov/documents/2023/08/24/2023-18116/airworthiness-directives-thales-avs-france-sas-flight-management-computer-navigation-modules)

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