# Proposed AD FAA-2020-0652: Airbus Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2020-23-06
- Products: Airbus Helicopters
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 16, 2020, 85 FR 43160
- Comments due: August 31, 2020
- Became: [AD 2020-23-06](https://openairdocs.org/ad/2020-23-06)
- Docket: FAA-2020-0652 (https://www.regulations.gov/docket/FAA-2020-0652, where comments are filed)
- FR document: 2020-15329
- Official PDF: https://openairdocs.org/files/sha256/11/dc/11dcc6c86f792c270889883b8fa819e8b11716b288f4b833e777e475659e2a22 (from https://www.govinfo.gov/content/pkg/FR-2020-07-16/pdf/2020-15329.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/07/16/2020-15329/airworthiness-directives-airbus-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2CDF0E4B9C00AD27862585A7003D7D2D.0001
- Page: https://openairdocs.org/proposed/FAA-2020-0652

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for Airbus Helicopters Model AS332C, AS332C1, AS332L, and AS332L1 helicopters. This proposed AD would require inspecting the main rotor (M/R) hub assembly (hub) phonic wheel lock washer (lock washer) for correct installation and depending on the outcome, repairing or replacing the M/R hub. This proposed AD was prompted by reported occurrences of M/R revolutions per minute (''NR'') sensor fluctuations. The actions of this proposed AD are intended to address an unsafe condition on these products.

## Notices in this docket

- Jul 16, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-15329, comments due Aug 31, 2020 (https://www.federalregister.gov/documents/2020/07/16/2020-15329/airworthiness-directives-airbus-helicopters)

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