# Airworthiness Directives; Airbus Helicopters
> **Rule** · Final rule. · Published 2021-03-11 · Effective 2021-04-15 · 86 FR 13811
## Document
- **Document number:** 2021-05091
- **Category:** airworthiness
- **Manufacturer:** Airbus
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 86 FR 13811
- **Publication date:** 2021-03-11
- **Effective date:** 2021-04-15
- **FAA docket:** Docket No. FAA-2020-1018
## Abstract

The FAA is superseding Airworthiness Directive (AD) 2018-19- 01, which applied to all Airbus Helicopters Model AS-365N2, AS 365 N3, EC 155B, EC155B1, SA-365N1, and SA-366G1 helicopters. AD 2018-19-01 required repetitive inspections of the aft fuselage outer skin. This AD continues to require repetitive inspections and adds Model SA-365N helicopters, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by aft fuselage (baggage compartment area) outer skin disbonding and a determination that Model SA-365N helicopters are also affected by the unsafe condition identified in AD 2018-19-01. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2021/03/11/2021-05091/airworthiness-directives-airbus-helicopters)
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