# Proposed AD FAA-2017-0099: Siemens S.A.S. Smoke Detectors

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2017-19-05
- Products: Siemens S.A.S.:
- Product type: Appliance
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 20, 2017, 82 FR 18588
- Comments due: June 5, 2017
- Became: [AD 2017-19-05](https://openairdocs.org/ad/2017-19-05)
- Docket: FAA-2017-0099 (https://www.regulations.gov/docket/FAA-2017-0099, where comments are filed)
- Project: 2017-NE-02-AD
- FR document: 2017-07675
- Official PDF: https://openairdocs.org/files/sha256/62/f8/62f8f309b43233d4b94ab2b292079658b520bbaa81ecf260c08ad8410ce35e98 (from https://www.govinfo.gov/content/pkg/FR-2017-04-20/pdf/2017-07675.pdf)
- Federal Register: https://www.federalregister.gov/documents/2017/04/20/2017-07675/airworthiness-directives-siemens-sas-smoke-detectors
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F049C56D6ABE411D862581080073E952.0001
- Page: https://openairdocs.org/proposed/FAA-2017-0099

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Siemens S.A.S. smoke detectors installed on various transport category airplanes. This proposed AD was prompted by a report that the affected smoke detectors failed an acceptance test. This proposed AD would require inspection and replacement of the affected smoke detectors. We are proposing this AD to correct the unsafe condition on these products.

## Notices in this docket

- Apr 20, 2017: Notice of proposed rulemaking (NPRM). (first notice), FR document 2017-07675, comments due Jun 5, 2017 (https://www.federalregister.gov/documents/2017/04/20/2017-07675/airworthiness-directives-siemens-sas-smoke-detectors)

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