# Proposed AD FAA-2014-0364: Airbus Helicopters (Previously Eurocopter France) (Airbus Helicopters) Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2015-17-01
- Products: Airbus Helicopters
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 9, 2014, 79 FR 32881
- Comments due: August 8, 2014
- Became: [AD 2015-17-01](https://openairdocs.org/ad/2015-17-01)
- Docket: FAA-2014-0364 (https://www.regulations.gov/docket/FAA-2014-0364, where comments are filed)
- Project: 2013-SW-041-AD
- FR document: 2014-13261
- Official PDF: https://openairdocs.org/files/sha256/8a/0d/8a0d6b80900e4ee251c5ce56ead086d56505e2b6bf83fa43b77130a9f1b0e68b (from https://www.govinfo.gov/content/pkg/FR-2014-06-09/pdf/2014-13261.pdf)
- Federal Register: https://www.federalregister.gov/documents/2014/06/09/2014-13261/airworthiness-directives-airbus-helicopters-previously-eurocopter-france-airbus-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/51CEB309F8601DC286257CF200475F73.0001
- Page: https://openairdocs.org/proposed/FAA-2014-0364

## Summary

We propose to supersede airworthiness directive (AD) 2013-21- 01 that currently applies to Eurocopter France Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. AD 2013-21-01 currently requires certain inspections of each tail rotor pitch horn assembly (pitch horn) for a crack and, if there is a crack, before further flight, replacing the pitch horn with an airworthy pitch horn. AD 2013-21-01 also requires a one-time visual inspection for pitch horns above certain hours time-in-service (TIS). This NPRM would retain the requirements of AD 2013-21-01 but would require a repetitive visual inspection for all pitch horns regardless of hours TIS, which requires allowing the public an opportunity to comment. These proposed actions are intended to detect a crack in the pitch horn to prevent failure of the pitch horn, loss of the anti-torque function, and subsequent loss of control of the helicopter.

## Notices in this docket

- Jun 9, 2014: Notice of proposed rulemaking (NPRM). (first notice), FR document 2014-13261, comments due Aug 8, 2014 (https://www.federalregister.gov/documents/2014/06/09/2014-13261/airworthiness-directives-airbus-helicopters-previously-eurocopter-france-airbus-helicopters)

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