EASA Regulations for Safran ARRIUS 1

4 airworthiness directives and regulations affecting Safran ARRIUS 1.

EASA AD 2026-0128

Engine Fuel & Control – Hydromechanical Metering Unit – Replacement

EASA Airworthiness Directive 2026-0128 is an official safety directive addressing the replacement of Hydromechanical Metering Units (HMUs) on SAFRAN Helicopter Engines ARRIUS 1A models, commonly installed on Airbus Helicopters AS 355 N twin-engine helicopters. The directive targets specific HMUs identified by part number 01648511170 and certain serial numbers listed in the AD. It mandates the replacement of affected HMUs to prevent engine fuel flow issues that could lead to uncommanded engine shutdowns.

Jul 2, 2026

Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 1Airbus Helicopters AS 355 N

EASA AD 2024-0148

Time Limits / Maintenance Checks — Airworthiness Limitations Section — Amendment

EASA Airworthiness Directive 2024-0148 is an amendment addressing the time limits and maintenance checks in the Airworthiness Limitations Section for SAFRAN Helicopter Engines ARRIUS 1A engines. These engines are commonly installed on Airbus Helicopters AS 355 N twin-engine helicopters. The directive mandates compliance with updated maintenance tasks and life limits to ensure continued airworthiness.

Jul 30, 2024

Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 1Airbus Helicopters AS 355 N

EASA AD 2022-0005

Time Limits / Maintenance Checks — Airworthiness Limitations Section — Amendment

EASA Airworthiness Directive 2022-0005 is an amendment addressing the time limits and maintenance checks in the Airworthiness Limitations Section for SAFRAN Helicopter Engines ARRIUS 1A1 engines. These engines are commonly installed on Airbus Helicopters AS355 NP twin-engine helicopters. The directive mandates compliance with updated maintenance tasks and life limits to ensure continued airworthiness.

Jan 11, 2022

Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 1Airbus Helicopters AS355 NP

EASA AD 2019-0266-E

Engine — Module 02 / Gas Generator — Service Life Calculation / Replacement

EASA Airworthiness Directive 2019-0266-E is an emergency directive addressing Safran Helicopter Engines ARRIUS 1A and 1A1 engines installed on helicopters such as the Airbus Helicopters AS355 N and AS355 NP. It mandates recalculating the service life of the gas generator module M02 due to a manufacturing non-conformity affecting high-pressure turbine blades and discs. The directive ensures continued airworthiness by requiring replacement of affected parts based on recalculated service life limits.

Oct 25, 2019

Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 1Airbus Helicopters AS355 NAirbus Helicopters AS355 NP