# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2023-02-13 · Effective 2023-03-20 · 88 FR 9185
## Document
- **Document number:** 2023-02934
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 88 FR 9185
- **Publication date:** 2023-02-13
- **Effective date:** 2023-03-20
- **FAA docket:** Docket No. FAA-2022-1050
## Abstract

The FAA is superseding Airworthiness Directive (AD) 2007-10- 04, which applied to all McDonnell Douglas Model DC-9-81 (MD-81), DC-9- 82 (MD-82), DC-9-83 (MD-83), DC-9-87 (MD-87), and MD-88 airplanes. AD 2007-10-04 required repetitive inspections to detect cracks in the horizontal stabilizer, and related investigative and corrective actions if necessary. Since the FAA issued AD 2007-10-04, it has been determined that certain compliance times and repetitive intervals must be reduced to address the unsafe condition. This AD continues to require the actions specified in AD 2007-10-04 with revised compliance times for certain actions. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/02/13/2023-02934/airworthiness-directives-the-boeing-company-airplanes)
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