# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2020-01-30 · Effective 2020-03-05 · 85 FR 5304
## Document
- **Document number:** 2020-01636
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 85 FR 5304
- **Publication date:** 2020-01-30
- **Effective date:** 2020-03-05
- **FAA docket:** Docket No. FAA-2019-0525
## Abstract

The FAA is superseding Airworthiness Directive (AD) 2006-11- 11, which applied to all The Boeing Company Model 757 airplanes. AD 2006-11-11 required incorporating a new revision to the Airworthiness Limitations section of the Instructions for Continued Airworthiness to mandate certain repetitive inspections for fatigue cracking of principal structural elements (PSEs). This AD retains those actions and requires revising the existing maintenance or inspection program, as applicable, to incorporate additional new or more restrictive airworthiness limitations. This AD was prompted by a determination that new or more restrictive airworthiness limitations are necessary. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/01/30/2020-01636/airworthiness-directives-the-boeing-company-airplanes)
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