# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2019-05-09 · Effective 2019-06-13 · 84 FR 20242
## Document
- **Document number:** 2019-09521
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 84 FR 20242
- **Publication date:** 2019-05-09
- **Effective date:** 2019-06-13
- **FAA docket:** Docket No. FAA-2018-0703
## Abstract

We are adopting a new airworthiness directive (AD) for all The Boeing Company Model 747-8 and 747-8F series airplanes. This AD was prompted by reports of damaged vapor seals, block seals, and heat shield seals on the outboard pylons between the engine strut and aft fairing. This AD requires installing new aft fairing vapor seals, heatshield seals, heatshield seal retainers, block seals, and outboard lateral restraint access panels. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2019/05/09/2019-09521/airworthiness-directives-the-boeing-company-airplanes)
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