# Proposed AD FAA-2004-19752: Saab Model SAAB SF340A and SAAB 340B Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2005-04-12
- Products: SAAB
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 1, 2004, 69 FR 69836
- Comments due: January 3, 2005
- Became: [AD 2005-04-12](https://openairdocs.org/ad/2005-04-12)
- Docket: FAA-2004-19752 (https://www.regulations.gov/docket/FAA-2004-19752, where comments are filed)
- Project: 2004-NM-170-AD
- FR document: 04-26495
- Official PDF: https://openairdocs.org/files/sha256/b0/86/b08611a6601c269069bf9aa0b4cb94e5127eca93ae33320f5f4fe67f9fe177de (from https://www.govinfo.gov/content/pkg/FR-2004-12-01/pdf/04-26495.pdf)
- Federal Register: https://www.federalregister.gov/documents/2004/12/01/04-26495/airworthiness-directives-saab-model-saab-sf340a-and-saab-340b-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4A822F19BBCF6E9886256F5D005C55DC.0001
- Page: https://openairdocs.org/proposed/FAA-2004-19752

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Saab Model SAAB SF340A and SAAB 340B series airplanes. This proposed AD would require repetitive inspections for wear of the brushes and leads and for loose rivets of the direct current (DC) starter generator, and related investigative/corrective actions if necessary. This proposed AD is prompted by reports of premature failures of the DC starter generator prior to scheduled overhaul. We are proposing this AD to prevent failure of the starter generator, which could cause a low voltage situation in flight and result in increased pilot workload and reduced redundancy of the electrical powered systems.

## Notices in this docket

- Dec 1, 2004: Notice of proposed rulemaking (NPRM). (first notice), FR document 04-26495, comments due Jan 3, 2005 (https://www.federalregister.gov/documents/2004/12/01/04-26495/airworthiness-directives-saab-model-saab-sf340a-and-saab-340b-series-airplanes)

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