# Proposed AD FAA-2023-1990: Various Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2024-14-03
- Products: Commander
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking (SNPRM).
- Published: April 17, 2024, 89 FR 27398
- Comments due: June 3, 2024
- Became: [AD 2024-14-03](https://openairdocs.org/ad/2024-14-03)
- Docket: FAA-2023-1990 (https://www.regulations.gov/docket/FAA-2023-1990, where comments are filed)
- Project: AD-2023-00734-A
- FR document: 2024-08082
- Official PDF: https://openairdocs.org/files/sha256/2a/c2/2ac2f4d01160ceb18df162b3703cd395326e5ed2381574292635bfb6cf7b3619 (from https://www.govinfo.gov/content/pkg/FR-2024-04-17/pdf/2024-08082.pdf)
- Federal Register: https://www.federalregister.gov/documents/2024/04/17/2024-08082/airworthiness-directives-various-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2024-08082-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2023-1990

## Summary

The FAA is revising a notice of proposed rulemaking (NPRM) that applied to various airplanes modified with a certain configuration of the Garmin GFC 500 Autopilot System installed per Supplemental Type Certificate (STC) No. SA01866WI. This action revises the NPRM by removing airplane models from and adding airplane models to the applicability. The FAA is proposing this airworthiness directive to address the unsafe condition on these products. Since this action would expand the applicability for the required action as proposed in the NPRM, the agency is requesting comments on this SNPRM.

## Notices in this docket

- Oct 10, 2023: Notice of proposed rulemaking (NPRM). (first notice), FR document 2023-22352, comments due Nov 24, 2023 (https://www.federalregister.gov/documents/2023/10/10/2023-22352/airworthiness-directives-various-airplanes)
- Apr 17, 2024: Supplemental notice of proposed rulemaking (SNPRM)., FR document 2024-08082, comments due Jun 3, 2024 (https://www.federalregister.gov/documents/2024/04/17/2024-08082/airworthiness-directives-various-airplanes)

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