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EASA Regulations for Safran ARRIUS 2

18 airworthiness directives and regulations affecting Safran ARRIUS 2.

EASA AD 2026-0131

Engine Fuel & Control – Electronic Engine Control Unit – Software Update; Engine Fuel & Control – Preference Injector – Non-extinguishing Test / Replacement

EASA Airworthiness Directive 2026-0131 addresses safety concerns for SAFRAN Helicopter Engines ARRIUS 2B2 engines, commonly installed on Airbus Helicopters Deutschland EC135 and EC635 models. The directive mandates software updates to the Electronic Engine Control Unit and introduces non-extinguishing tests and replacement requirements for the preference injector component. These measures aim to prevent engine flameouts caused by fuel coking and injector clogging.

Jul 6, 2026
Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 2Airbus Helicopters EC135Airbus Helicopters EC635

EASA AD 2026-0027

Time Limits / Maintenance Checks — Airworthiness Limitations Section — Amendment

EASA Airworthiness Directive 2026-0027 is an amendment concerning the time limits and maintenance checks detailed in the Airworthiness Limitations Section for SAFRAN Helicopter Engines ARRIUS 2B2 engines. These engines are commonly installed on Airbus Helicopters Deutschland EC135 and EC635 models. The directive updates mandatory maintenance tasks and life limits to ensure continued airworthiness of these engines.

Feb 11, 2026
Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 2

EASA AD 2024-0202R1

Engine Fuel & Control — Fuel Control Unit — Replacement

EASA Airworthiness Directive 2024-0202R1 is a regulatory update addressing the replacement of fuel control units (FCUs) on SAFRAN ARRIUS 2F engines, commonly installed on Airbus Helicopters EC120 B helicopters. The directive targets specific FCU serial numbers that may have a manufacturing defect leading to uncommanded in-flight engine shutdowns. It mandates inspection, replacement, and prohibits installation of affected FCUs to ensure continued airworthiness.

Sep 8, 2025
Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 2

EASA AD 25-138

WITHDRAWN - EXPLANATORY STATEMENT ATTACHED

EASA Withdrawal Statement for Proposed AD 25-138 announces the withdrawal of the proposed airworthiness directive concerning engine modifications for AHD EC135 T3 and EC635 T3 helicopters in pre-TU 172 configuration. The withdrawal follows findings of incompatibility between the TU 172 software and EC135 T3 avionics. Further investigations are required to determine the correct software version.

Sep 5, 2025
Agency DecisionMaintenanceSafety MgmtSafran ARRIUS 2

EASA AD 2024-0218R1-CN

CANCELLED: Engine — Gas Generator High-Pressure Turbine Blades — Replacement

EASA Airworthiness Directive Cancellation Notice 2024-0218R1-CN cancels the previous directive concerning the replacement of high-pressure turbine blades in SAFRAN ARRIUS 2F and 2R engines. These engines are commonly installed on Airbus Helicopters EC 120 B and Bell 505 helicopters. The cancellation removes the requirement for replacing certain turbine blades due to revised safety assessments.

Mar 17, 2025
Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 2

EASA AD 2024-0195R1

Engine Fuel & Control — Electronic Engine Control Unit — Software Update; Preference Injector — Non-extinguishing Test / Replacement

EASA Airworthiness Directive 2024-0195R1 addresses safety concerns related to SAFRAN Helicopter Engines ARRIUS 2B2 engines, commonly installed on Airbus Helicopters Deutschland EC135 models. The directive mandates software updates to the Electronic Engine Control Unit and introduces requirements for non-extinguishing tests and replacement of the preference injector to prevent engine flame out. This AD applies to all serial numbers of the ARRIUS 2B2 engine.

Oct 22, 2024
Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 2Airbus Helicopters EC135

EASA AD 2024-0149

SUPERSEDED BY EASA AD 2026-0027

EASA Airworthiness Directive 2024-0149 is issued for SAFRAN Helicopter Engines ARRIUS 2B2 engines, which are commonly installed on Airbus Helicopters Deutschland EC135 and EC635 models. This directive mandates compliance with updated airworthiness limitations and maintenance tasks as specified in the latest Airworthiness Limitations Section of the ARRIUS 2B2 Maintenance Manual. It ensures continued airworthiness by enforcing life limits and maintenance intervals for engine components.

Jul 30, 2024
Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 2Airbus Helicopters EC135Airbus Helicopters EC635

EASA AD 2024-0150

Time Limits / Maintenance Checks — Airworthiness Limitations Section — Amendment

EASA Airworthiness Directive 2024-0150 is an amendment addressing the time limits and maintenance checks in the Airworthiness Limitations Section for SAFRAN Helicopter Engines ARRIUS 2K2 engines, commonly installed on Leonardo A109 helicopters. This directive mandates compliance with updated maintenance tasks and life limits as specified in the latest SAFRAN Arrius 2K2 Maintenance Manual. It ensures continued airworthiness by enforcing new or more restrictive maintenance requirements.

Jul 30, 2024
Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 2Leonardo A109

EASA AD 2024-0115-CN

CANCELLED: Engine Fuel and Control — Check of Correct Position of Adjusted Fuel Control Unit

EASA Airworthiness Directive Cancellation Notice 2024-0115-CN cancels the previous DGAC France AD F-2005-088 which addressed the inspection of the fuel control unit position on SAFRAN Helicopter Engines ARRIUS 2F engines. These engines are commonly installed on EC 120B helicopters. The cancellation reflects that all affected engines have been inspected and corrected where necessary, and the safety risk no longer qualifies as an unsafe condition.

Jun 21, 2024
Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 2Airbus Helicopters EC 120B

EASA AD 2024-0114

Time Limits / Maintenance Checks — Airworthiness Limitations Section — Amendment

EASA Airworthiness Directive 2024-0114 is an amendment concerning the ARRIUS 2G1 engines manufactured by SAFRAN Helicopter Engines, commonly installed on KAMOV 226T helicopters. This directive mandates compliance with updated airworthiness limitations and maintenance tasks as specified in the latest Airworthiness Limitations Section of the SAFRAN Arrius 2G1 Maintenance Manual. It ensures continued airworthiness by enforcing replacement of life-limited parts and adherence to revised maintenance intervals.

Jun 21, 2024
Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 2Kamov 226T

EASA AD 2022-0265R1

Engine Indicating / Conformation Values — Consistency Check

The document titled 'Engine Indicating / Conformation Values — Consistency Check' pertains to the SAFRAN HELICOPTER ENGINES: ARRIUS 2 engine model. It addresses the consistency verification of engine indicating and conformation values to ensure accurate monitoring and performance assessment of the ARRIUS 2 engines. This document is relevant for operators and maintenance organizations managing helicopters equipped with these engines.

Jan 6, 2023
OtherMaintenanceSafety MgmtSafran ARRIUS 2

EASA AD 2022-0203

SUPERSEDED BY EASA AD 2024-0149

EASA Airworthiness Directive 2022-0203 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting SAFRAN Helicopter Engines ARRIUS 2B2 engines, commonly installed on Airbus Helicopters Deutschland EC135 and EC635 helicopters. The directive mandates compliance with updated airworthiness limitations and maintenance tasks as specified in the SAFRAN ARRIUS 2B2 Maintenance Manual Chapter 05-10 Airworthiness Limitations Section Temporary Update No. 05-9.

Sep 30, 2022
Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 2Airbus Helicopters EC135Airbus Helicopters EC635

EASA AD 2020-0033R1

Engine Fuel & Control — Hydro-mechanical Metering Unit / Drive Link Splines — Inspection

EASA Airworthiness Directive 2020-0033R1 is an updated safety directive addressing the inspection of hydro-mechanical metering units (HMU) and drive link splines on SAFRAN Helicopter Engines ARRIUS 2 series engines. These engines are commonly installed on helicopters such as the Airbus Helicopters Deutschland EC135, Leonardo A109, and KAMOV 226T. The directive mandates inspections to prevent engine in-flight shutdowns caused by spline deterioration on the HMU drive shaft.

Dec 10, 2021
Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 2Airbus Helicopters EC135Leonardo A109Kamov 226T

EASA AD 2021-0088R1

Engine Fuel & Control — Digital Engine Control Unit — Software Update

The document titled 'Engine Fuel & Control — Digital Engine Control Unit — Software Update' pertains to the SAFRAN HELICOPTER ENGINES ARRIUS 2 engine model. It addresses updates to the software of the digital engine control unit used in these engines. This update is relevant for operators and maintenance organizations managing aircraft powered by the ARRIUS 2 engine.

Jul 26, 2021
OtherMaintenanceSafran ARRIUS 2

EASA AD 2019-0296

Engine Fuel & Control — Fuel Filter Pre-Blockage Pressure Switch — Replacement

EASA Airworthiness Directive 2019-0296 is an airworthiness directive addressing SAFRAN Helicopter Engines ARRIUS 2G1 engines, commonly installed on Kamov Ka-226T helicopters. The directive mandates the replacement of certain fuel filter pre-blockage pressure switches identified by specific part and serial numbers due to potential non-conformities. This AD aims to ensure continued safe operation by preventing uncommanded engine shutdowns caused by fuel filter contamination.

Dec 9, 2019
Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 2Kamov Ka-226T

EASA AD 2018-0044-CN

CANCELLED: Engine — Power Turbine Wheels — Replacement

EASA Airworthiness Directive 2018-0044-CN is a cancellation notice issued by the European Union Aviation Safety Agency concerning SAFRAN Helicopter Engines ARRIUS 2 series engines. This document cancels the previous AD 2018-0044 which mandated replacement of certain power turbine wheels due to a risk of blade rupture. The affected engines include ARRIUS 2B1, 2B1A, 2B2, 2G1, 2K1, and 2K2 models.

Jul 18, 2019
Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 2

EASA AD 2007-0057R1

Engine — Gas Generator Front Bearing — Modification

EASA Airworthiness Directive 2007-0057R1 is a regulatory update addressing the ARRIUS 2F engines manufactured by SAFRAN Helicopter Engines, commonly installed on EC 120B helicopters. This directive mandates modifications to the gas generator front bearing to prevent un-commanded in-flight engine shutdowns caused by bearing fractures. The directive ensures continued airworthiness by requiring installation of improved gas generator front bearings.

Mar 26, 2018
Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 2Eurocopter EC 120B

EASA AD 2018-0012-E

Engine Oil system — Electrical Magnetic Plug — Inspection / Replacement

EASA Airworthiness Directive 2018-0012-E is an emergency directive addressing Safran Helicopter Engines ARRIUS 2F engines, commonly installed on Airbus Helicopters EC120 B models. It mandates inspection and replacement of electrical magnetic plug heads with part number 9 520 01 154 5 due to flaking cadmium coating caused by manufacturing defects. This directive aims to ensure the reliability of the engine's particle detection system to prevent in-flight engine failures.

Jan 16, 2018
Airworthiness DirectiveMaintenanceSafety MgmtSafran ARRIUS 2Airbus Helicopters EC120 B