# Airworthiness Directives; Pacific Aerospace Limited Airplanes
> **Rule** · Final rule. · Published 2020-07-30 · Effective 2020-08-19 · 85 FR 45761
## Document
- **Document number:** 2020-16395
- **Category:** airworthiness
- **Manufacturer:** Pacific Aerospace Limited
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 85 FR 45761
- **Publication date:** 2020-07-30
- **Effective date:** 2020-08-19
- **FAA docket:** Docket No. FAA-2019-0566
## Abstract

The FAA is adopting a new airworthiness directive (AD) for Pacific Aerospace Limited Model 750XL airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as ineffective firewall sealing for firewall wiring penetrations. The FAA is issuing this AD to require actions to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2020/07/30/2020-16395/airworthiness-directives-pacific-aerospace-limited-airplanes)
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