# Proposed AD FAA-2022-0991: Learjet, Inc., Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2023-01-05
- Products: Learjet
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking (SNPRM).
- Published: November 10, 2022, 87 FR 67834
- Comments due: August 11, 2022
- Became: [AD 2023-01-05](https://openairdocs.org/ad/2023-01-05)
- Docket: FAA-2022-0991 (https://www.regulations.gov/docket/FAA-2022-0991, where comments are filed)
- Project: AD-2022-00155-T
- FR document: 2022-24419
- Official PDF: https://openairdocs.org/files/sha256/a7/d8/a7d8a107cf28fb8aa4fea3583abdf5c73d011ba28e7c1ede5a0b5b1df1542fbf (from https://www.govinfo.gov/content/pkg/FR-2022-11-10/pdf/2022-24419.pdf)
- Federal Register: https://www.federalregister.gov/documents/2022/11/10/2022-24419/airworthiness-directives-learjet-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2022-24419-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2022-0991

## Summary

The FAA is revising a notice of proposed rulemaking (NPRM) that applied to certain Learjet, Inc., Model 45 airplanes. This action revises the NPRM by adding airplanes to the applicability. The FAA is proposing this airworthiness directive (AD) to address the unsafe condition on these products. Since these actions would impose an additional burden over that in the NPRM, the FAA is requesting comments on this SNPRM.

## Notices in this docket

- Aug 11, 2022: Notice of proposed rulemaking (NPRM). (first notice), FR document 2022-16680, comments due Sep 26, 2022 (https://www.federalregister.gov/documents/2022/08/11/2022-16680/airworthiness-directives-learjet-inc-airplanes)
- Nov 10, 2022: Supplemental notice of proposed rulemaking (SNPRM)., FR document 2022-24419, comments due Aug 11, 2022 (https://www.federalregister.gov/documents/2022/11/10/2022-24419/airworthiness-directives-learjet-inc-airplanes)

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