# Airworthiness Directives; Saab Model SAAB SF340A and SAAB 340B Series Airplanes
> **Rule** · Final rule. · Published 2004-11-05 · Effective 2004-12-10 · 69 FR 64482
## Document
- **Document number:** 04-24520
- **Category:** airworthiness
- **Manufacturer:** Saab Model SAAB SF340A and SAAB 340B Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 69 FR 64482
- **Publication date:** 2004-11-05
- **Effective date:** 2004-12-10
- **FAA docket:** Docket No. FAA-2004-19001
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Saab Model SAAB SF340A and SAAB 340B series airplanes. This AD requires an inspection of the elevator and aileron trim-tab fittings, and related investigative/corrective actions if necessary. This AD is prompted by reports of improperly installed rivets in the retainers that hold the elevator trim-tab bearings. We are issuing this AD to prevent the elevator and aileron trim-tab bearings from coming loose, which could result in excessive play in the elevator and aileron trim systems, and reduced controllability of the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/11/05/04-24520/airworthiness-directives-saab-model-saab-sf340a-and-saab-340b-series-airplanes)
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