# Airworthiness Directives; Learjet, Inc., Airplanes
> **Rule** · Final rule. · Published 2023-02-02 · Effective 2023-03-09 · 88 FR 6972
## Document
- **Document number:** 2023-02006
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 88 FR 6972
- **Publication date:** 2023-02-02
- **Effective date:** 2023-03-09
- **FAA docket:** Docket No. FAA-2022-0991
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Learjet, Inc., Model 45 airplanes. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. This AD requires revising the existing inspection program to incorporate reduced inspection intervals for the anti-ice manifold assembly. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/02/02/2023-02006/airworthiness-directives-learjet-inc-airplanes)
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