# Airworthiness Directives; Boeing Model 747 Series Airplanes
> **Rule** · Final rule. · Published 2005-02-02 · Effective 2005-03-09 · 70 FR 5361
## Document
- **Document number:** 05-1724
- **Category:** airworthiness
- **Manufacturer:** Boeing Model 747 Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 70 FR 5361
- **Publication date:** 2005-02-02
- **Effective date:** 2005-03-09
- **FAA docket:** Docket No. 2001-NM-279-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to all Boeing Model 747 series airplanes, that requires repetitive inspections of the nacelle strut-to-wing attachment structure, and repetitive overhaul of the diagonal brace and spring beam load paths, to maintain damage tolerance requirements and ensure long-term structural integrity; and follow-on and corrective actions if necessary. This action is necessary to ensure the structural integrity of the strut-to-wing load path and prevent separation of the strut and engine from the airplane. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2005/02/02/05-1724/airworthiness-directives-boeing-model-747-series-airplanes)
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