# Airworthiness Directives; Saab AB, Saab Aerosystems Airplanes
> **Rule** · Final rule. · Published 2012-05-03 · Effective 2012-06-07 · 77 FR 26158
## Document
- **Document number:** 2012-10469
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 77 FR 26158
- **Publication date:** 2012-05-03
- **Effective date:** 2012-06-07
- **FAA docket:** Docket No. FAA-2011-1410
## Abstract

We are adopting a new airworthiness directive (AD) for all Saab AB, Saab Aerosystems Model SAAB 2000 airplanes. This AD was prompted by reports of hydraulic accumulator failure. This AD requires replacing certain hydraulic accumulators with stainless steel hydraulic accumulators, and structural modifications in the nose landing gear bay. We are issuing this AD to prevent failure of hydraulic accumulators, which may result in damage to the airplane and injury to occupants.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/05/03/2012-10469/airworthiness-directives-saab-ab-saab-aerosystems-airplanes)
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