# Proposed AD 2002-NM-146-AD: Saab Model SAAB SF340A and SAAB 340B Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2004-09-35
- Products: SAAB
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 30, 2003, 68 FR 61774
- Comments due: December 1, 2003
- Became: [AD 2004-09-35](https://openairdocs.org/ad/2004-09-35)
- Docket: 2002-NM-146-AD
- FR document: 03-27321
- Official PDF: https://openairdocs.org/files/sha256/67/9f/679fef49712b746488581bc7f1ce348c032700c34581330bd6b86432ae32462a (from https://www.govinfo.gov/content/pkg/FR-2003-10-30/pdf/03-27321.pdf)
- Federal Register: https://www.federalregister.gov/documents/2003/10/30/03-27321/airworthiness-directives-saab-model-saab-sf340a-and-saab-340b-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A2788FFF67BE800286256DCF00567FFC.0001
- Page: https://openairdocs.org/proposed/2002-NM-146-AD

## Summary

This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Saab Model SAAB SF340A and SAAB 340B series airplanes. This proposal would require removing the two direct current (DC) over-voltage/feeder-fault test switches from the Test 2 Panel of the generator control unit, and follow-on actions. This action is necessary to prevent the loss of the DC generators, which could result in the loss of normal electrical power to the airplane and increased pilot workload. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Oct 30, 2003: Notice of proposed rulemaking (NPRM). (first notice), FR document 03-27321, comments due Dec 1, 2003 (https://www.federalregister.gov/documents/2003/10/30/03-27321/airworthiness-directives-saab-model-saab-sf340a-and-saab-340b-series-airplanes)

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