# Proposed AD FAA-2021-0947: Airbus Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2022-01-01
- Products: Airbus Helicopters
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: October 29, 2021, 86 FR 59892
- Comments due: December 13, 2021
- Became: [AD 2022-01-01](https://openairdocs.org/ad/2022-01-01)
- Docket: FAA-2021-0947 (https://www.regulations.gov/docket/FAA-2021-0947, where comments are filed)
- Project: MCAI-2021-00195-R
- FR document: 2021-23515
- Official PDF: https://openairdocs.org/files/sha256/22/14/22143048387795633bdbb3d24e641f7bb19a68b706b8c0b6666d3bf49a310298 (from https://www.govinfo.gov/content/pkg/FR-2021-10-29/pdf/2021-23515.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/10/29/2021-23515/airworthiness-directives-airbus-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2021-23515-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0947

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350D, EC130B4, and EC130T2 helicopters; Model AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters; and Model SA-365C1, SA-365C2, SA-365N, SA-365N1, AS-365N2, and AS 365 N3 helicopters. This proposed AD was prompted by a report of increased vibration during flight. This proposed AD would require the application of alignment markings on, and repetitive inspections of, the main rotor (MR) pitch rod upper links and, depending on findings, the accomplishment of applicable corrective actions, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference (IBR). The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Oct 29, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-23515, comments due Dec 13, 2021 (https://www.federalregister.gov/documents/2021/10/29/2021-23515/airworthiness-directives-airbus-helicopters)

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