# Proposed AD FAA-2017-0479: Saab AB, Saab Aeronautics (Formerly Known as Saab AB, Saab Aerosystems) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2017-17-14
- Products: Saab AB, Saab Aeronautics
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 22, 2017, 82 FR 23158
- Comments due: July 6, 2017
- Became: [AD 2017-17-14](https://openairdocs.org/ad/2017-17-14)
- Docket: FAA-2017-0479 (https://www.regulations.gov/docket/FAA-2017-0479, where comments are filed)
- Project: 2016-NM-202-AD
- FR document: 2017-10139
- Official PDF: https://openairdocs.org/files/sha256/d5/c6/d5c61391d7631e52f17bf5cb82595066c8028ce8055aa7c238bbd04964e6b6e7 (from https://www.govinfo.gov/content/pkg/FR-2017-05-22/pdf/2017-10139.pdf)
- Federal Register: https://www.federalregister.gov/documents/2017/05/22/2017-10139/airworthiness-directives-saab-ab-saab-aeronautics-formerly-known-as-saab-ab-saab-aerosystems
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DA3CC11116603F64862581280050DC08.0001
- Page: https://openairdocs.org/proposed/FAA-2017-0479

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Saab AB, Saab Aeronautics Model 340A (SAAB/SF340A) airplanes. This proposed AD was prompted by the discovery of circuit breakers of unsuitable strength that fail to protect the system from overcurrent. This proposed AD would require replacing certain circuit breakers. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- May 22, 2017: Notice of proposed rulemaking (NPRM). (first notice), FR document 2017-10139, comments due Jul 6, 2017 (https://www.federalregister.gov/documents/2017/05/22/2017-10139/airworthiness-directives-saab-ab-saab-aeronautics-formerly-known-as-saab-ab-saab-aerosystems)

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