# Airworthiness Directives; McDonnell Douglas Corporation Model MD-90-30 Airplanes
> **Rule** · Final rule. · Published 2010-02-25 · Effective 2010-04-01 · 75 FR 8465
## Document
- **Document number:** 2010-3469
- **Category:** airworthiness
- **Manufacturer:** McDonnell Douglas Corporation Model MD-90-30
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 75 FR 8465
- **Publication date:** 2010-02-25
- **Effective date:** 2010-04-01
- **FAA docket:** Docket No. FAA-2009-0783
## Abstract

We are adopting a new airworthiness directive (AD) for all Model MD-90-30 airplanes. This AD requires repetitive inspections for cracking of the overwing frames at stations 883, 902, 924, 943, and 962, left and right sides, and corrective actions if necessary. This AD results from reports of cracked overwing frames. We are issuing this AD to detect and correct such cracking, which could sever the frame, increase the loading of adjacent frames, and result in damage to adjacent structure and loss of overall structural integrity of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2010/02/25/2010-3469/airworthiness-directives-mcdonnell-douglas-corporation-model-md-90-30-airplanes)
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