# Proposed AD FAA-2016-9430: ATR-GIE Avions de Transport R gional Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2017-09-12
- Products: ATR - GIE Avions de Transport R gional
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 1, 2016, 81 FR 86627
- Comments due: January 17, 2017
- Became: [AD 2017-09-12](https://openairdocs.org/ad/2017-09-12)
- Docket: FAA-2016-9430 (https://www.regulations.gov/docket/FAA-2016-9430, where comments are filed)
- Project: 2016-NM-051-AD
- FR document: 2016-28618
- Official PDF: https://openairdocs.org/files/sha256/13/51/13519ad6860a1564743540a4f6fe8e9417666969f6a70e75999d37f1a3f7eb25 (from https://www.govinfo.gov/content/pkg/FR-2016-12-01/pdf/2016-28618.pdf)
- Federal Register: https://www.federalregister.gov/documents/2016/12/01/2016-28618/airworthiness-directives-atr-gie-avions-de-transport-rgional-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0B2AFC7628ADDAE98625807C0053482F.0001
- Page: https://openairdocs.org/proposed/FAA-2016-9430

## Summary

We propose to adopt a new airworthiness directive (AD) for certain ATR-GIE Avions de Transport R gional Model ATR42-500 and Model ATR72-102, -202, -212, and -212A airplanes. This proposed AD was prompted by reports of failure of emergency power supply units (EPSUs) in production and in service. This proposed AD would require an inspection to determine the part number and serial number of each EPSU, and replacement if necessary. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Dec 1, 2016: Notice of proposed rulemaking (NPRM). (first notice), FR document 2016-28618, comments due Jan 17, 2017 (https://www.federalregister.gov/documents/2016/12/01/2016-28618/airworthiness-directives-atr-gie-avions-de-transport-rgional-airplanes)

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