# Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier Inc.) Airplanes
> **Rule** · Final rule; request for comments. · Published 2023-10-13 · Effective 2023-10-30 · 88 FR 70885
## Document
- **Document number:** 2023-22486
- **Category:** airworthiness
- **Manufacturer:** MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier Inc.)
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 88 FR 70885
- **Publication date:** 2023-10-13
- **Effective date:** 2023-10-30
- **FAA docket:** Docket No. FAA-2023-1992
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all MHI RJ Aviation ULC Model CL-600-2E25 (Regional Jet Series 1000) airplanes. This AD was prompted by a determination that a new airworthiness limitation is necessary. This AD requires revising the existing maintenance or inspection program, as applicable, to establish a new life limit for a certain main landing gear (MLG) retract actuator piston rod. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/10/13/2023-22486/airworthiness-directives-mhi-rj-aviation-ulc-type-certificate-previously-held-by-bombardier-inc)
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