# Airworthiness Directives; BAE SYSTEMS (OPERATIONS) LIMITED Airplanes
> **Rule** · Final rule. · Published 2012-10-31 · Effective 2012-12-05 · 77 FR 65801
## Document
- **Document number:** 2012-26185
- **Category:** airworthiness
- **Manufacturer:** BAE SYSTEMS (OPERATIONS) LIMITED
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 77 FR 65801
- **Publication date:** 2012-10-31
- **Effective date:** 2012-12-05
- **FAA docket:** Docket No. FAA-2012-0642
## Abstract

We are adopting a new airworthiness directive (AD) for certain BAE SYSTEMS (OPERATIONS) LIMITED Model BAe 146 series airplanes and Model Avro 146-RJ series airplanes. This AD was prompted by hydraulic pipe ruptures in the center of the cabin resulting in passengers being contaminated with hydraulic fluid. This AD requires installing a hydraulic fluid containment system. We are issuing this AD to prevent harmful or hazardous concentrations of hydraulic fluid or hydraulic vapor from entering the passenger compartment, possibly resulting in injury to the passengers.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/10/31/2012-26185/airworthiness-directives-bae-systems-operations-limited-airplanes)
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