# Proposed AD FAA-2020-0271: Airbus Helicopters

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2020-20-03
- Products: Airbus Helicopters
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 23, 2020, 85 FR 16279
- Comments due: May 22, 2020
- Became: [AD 2020-20-03](https://openairdocs.org/ad/2020-20-03)
- Docket: FAA-2020-0271 (https://www.regulations.gov/docket/FAA-2020-0271, where comments are filed)
- FR document: 2020-05774
- Official PDF: https://openairdocs.org/files/sha256/ca/1e/ca1eba3fbb92a053df0ed37b99bfe0c3bd994bd09091dbdee8a62b3af871eae4 (from https://www.govinfo.gov/content/pkg/FR-2020-03-23/pdf/2020-05774.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/03/23/2020-05774/airworthiness-directives-airbus-helicopters
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7EE8730FCE95B92286258534004BA9D9.0001
- Page: https://openairdocs.org/proposed/FAA-2020-0271

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Helicopters Model AS350B2 helicopters. This proposed AD would require performing a test of the main rotor RPM (NR) indicator, and depending on the results, altering the wiring. This proposed AD is prompted by reports of some NR indicators displaying incorrect information. The actions of this proposed AD are intended to address an unsafe condition on these products.

## Notices in this docket

- Mar 23, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-05774, comments due May 22, 2020 (https://www.federalregister.gov/documents/2020/03/23/2020-05774/airworthiness-directives-airbus-helicopters)

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