# Proposed AD 2002-SW-17-AD: Eurocopter France Model AS 350B3, SA-365N, N1, AS-365N2, AS 365N3, and EC 155B Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2003-20-12
- Products: Eurocopter France
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 22, 2003, 68 FR 19757
- Comments due: June 23, 2003
- Became: [AD 2003-20-12](https://openairdocs.org/ad/2003-20-12)
- Docket: 2002-SW-17-AD
- FR document: 03-9864
- Official PDF: https://openairdocs.org/files/sha256/a4/60/a460e76e0a568c7ccb580c2fc2e2ed6629e9915746a6faa0d66c799251c76cd0 (from https://www.govinfo.gov/content/pkg/FR-2003-04-22/pdf/03-9864.pdf)
- Federal Register: https://www.federalregister.gov/documents/2003/04/22/03-9864/airworthiness-directives-eurocopter-france-model-as-350b3-sa-365n-n1-as-365n2-as-365n3-and-ec-155b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DF2A35DC90E3C07486256D10004E799B.0001
- Page: https://openairdocs.org/proposed/2002-SW-17-AD

## Summary

This document proposes adopting a new airworthiness directive (AD) for Eurocopter France (Eurocopter) AS 350B3, SA-365N, N1, AS-365N2, AS 365N3, and EC 155B helicopters. This proposal would require modifying the SIREN cargo hook and inspecting the cargo hook locking catch (locking catch) for corrosion. This proposal is prompted by the discovery of internal corrosion on a Siren locking catch that may weaken the locking catch. The actions specified by this proposed AD are intended to detect internal corrosion of the locking catch, which can cause the locking catch to return to an incomplete locking position, undetectable by the operator, and result in an unexpected cargo load release.

## Notices in this docket

- Apr 22, 2003: Notice of proposed rulemaking (NPRM). (first notice), FR document 03-9864, comments due Jun 23, 2003 (https://www.federalregister.gov/documents/2003/04/22/03-9864/airworthiness-directives-eurocopter-france-model-as-350b3-sa-365n-n1-as-365n2-as-365n3-and-ec-155b)

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