# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2019-08-15 · Effective 2019-09-19 · 84 FR 41614
## Document
- **Document number:** 2019-17501
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 84 FR 41614
- **Publication date:** 2019-08-15
- **Effective date:** 2019-09-19
- **FAA docket:** Docket No. FAA-2019-0023
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-100, 737-200, 737-200C, 737-300, 737-400, and 737-500 series airplanes. This AD was prompted by reports of cracks in the frames below the passenger floor. This AD requires repetitive inspections for cracking of the fuselage lower lobe frames, and applicable on-condition actions. This AD also provides an optional terminating action for certain repetitive inspections. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2019/08/15/2019-17501/airworthiness-directives-the-boeing-company-airplanes)
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