# Proposed AD FAA-2014-0465: Agusta S.p.A. Helicopters (Type Certificate Currently Held by AgustaWestland S.p.A.) (Agusta)

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2015-02-21
- Products: Agusta
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 16, 2014, 79 FR 41464
- Comments due: September 15, 2014
- Became: [AD 2015-02-21](https://openairdocs.org/ad/2015-02-21)
- Docket: FAA-2014-0465 (https://www.regulations.gov/docket/FAA-2014-0465, where comments are filed)
- Project: 2013-SW-044-AD
- FR document: 2014-16681
- Official PDF: https://openairdocs.org/files/sha256/55/14/55146d2e9234e86752d21d6056a9a79e4c3f4ad118a194559f9f5f5ddb3c7cec (from https://www.govinfo.gov/content/pkg/FR-2014-07-16/pdf/2014-16681.pdf)
- Federal Register: https://www.federalregister.gov/documents/2014/07/16/2014-16681/airworthiness-directives-agusta-spa-helicopters-type-certificate-currently-held-by-agustawestland
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3E66966F0477DDB586257D170046BA55.0001
- Page: https://openairdocs.org/proposed/FAA-2014-0465

## Summary

We propose to adopt a new airworthiness directive (AD) for Agusta AB139 and AW139 helicopters to require replacing certain single- braided flexible hydraulic hoses with double-braided flexible hydraulic hoses. This proposed AD is prompted by occurrences of leaking flexible hydraulic hoses. The proposed actions are intended to prevent loss of hydraulic power and subsequent loss of helicopter control.

## Notices in this docket

- Jul 16, 2014: Notice of proposed rulemaking (NPRM). (first notice), FR document 2014-16681, comments due Sep 15, 2014 (https://www.federalregister.gov/documents/2014/07/16/2014-16681/airworthiness-directives-agusta-spa-helicopters-type-certificate-currently-held-by-agustawestland)

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