# Airworthiness Directives; Saab Model SAAB SF340A Series Airplanes
> **Rule** · Final rule. · Published 2004-07-27 · Effective 2004-08-31 · 69 FR 44587
## Document
- **Document number:** 04-16678
- **Category:** airworthiness
- **Manufacturer:** Saab Model SAAB SF340A Series
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 69 FR 44587
- **Publication date:** 2004-07-27
- **Effective date:** 2004-08-31
- **FAA docket:** Docket No. 2002-NM-319-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain Saab Model SAAB SF340A series airplanes, that requires replacing certain power wires with a modification harness; and testing the new harness installation. These actions are necessary to prevent a momentary loss of data on the left-hand electronic flight instrumentation system (LH EFIS) screens, which could lead to the pilot's loss of situational awareness during initial climb or approach/ landing, and possibly result in reduced control of the airplane. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/07/27/04-16678/airworthiness-directives-saab-model-saab-sf340a-series-airplanes)
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