EASA Regulations for Airbus Helicopters AS 350

87 airworthiness directives and regulations affecting Airbus Helicopters AS 350.

EASA AD 2023-0190R1

SUPERSEDED BY EASA AD 2024-0144

EASA Airworthiness Directive 2023-0190R1 is an updated safety directive addressing Airbus Helicopters EC 130 T2 models equipped with specific tail rotor drive shafts (P/N 350A34-5010-00 or 3S50A34-5020-00). It mandates repetitive vibration level measurements of the tail rotor drive shaft to detect potential cracks or failures that could lead to loss of yaw control. The directive includes detailed inspection procedures and corrective actions to maintain airworthiness.

Feb 20, 2024

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters EC 130 T2

EASA AD 2024-0018

Indicating / Recording Systems — Control Unit — Inspection

EASA Airworthiness Directive 2024-0018 is an airworthiness directive addressing inspection and modification requirements for the control units of Airbus Helicopters AS 350 B2/B3, EC 130 B4, and EC 120 B models. It mandates inspection, cleaning, and corrective actions for affected control units to prevent short circuits that could impair multiple systems including the Emergency Floatation System (EFS). This directive applies to all serial numbers of the specified helicopter models.

Jan 11, 2024

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters EC 120 BAirbus Helicopters AS 350 B2Airbus Helicopters AS 350 B3Airbus Helicopters EC 130 B4

EASA AD 2023-0214

Fuselage — Tail Rotor Drive Shaft / Rear Transmission Bearing Support — Inspections / Modification

EASA Airworthiness Directive 2023-0214 is an airworthiness directive issued for Airbus Helicopters EC 130 T2 models equipped with modification 074581. It addresses inspections and modifications related to the tail rotor drive shaft and rear transmission bearing support to prevent failure of the tail rotor drive shaft and loss of yaw control. The directive mandates repetitive inspections and a reinforcement modification to ensure continued airworthiness.

Dec 11, 2023

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters EC 130 T2

EASA SIB 2023-11

Hand Fire Extinguisher (HFE) / Check of the absence of discharge of the HFE

EASA Safety Information Bulletin 2023-11 is an airworthiness bulletin addressing the Hand Fire Extinguisher (HFE) manufactured by L’HOTELLIER, part number 12085-01 (S262A10T1001), installed on various Airbus Helicopters models including AS 350, AS 355, EC 130, EC 155, SA 365, AS 365, EC 120, EC 175, SA 341, and SA 342. The bulletin highlights issues with HFEs manufactured before July 2022 that may have unintentional discharge due to production defects. It provides guidance on checking for absence of discharge to ensure firefighting capability is maintained.

Oct 24, 2023

Safety Information BulletinMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355Airbus Helicopters EC 120 BAirbus Helicopters EC175Airbus Helicopters SA 341Airbus Helicopters 342Airbus Helicopters SAAirbus Helicopters AS 365Airbus Helicopters EC 155

EASA AD 2023-0166

Equipment / Furnishings — Emergency Floatation System Supply Hose Connection / Retaining Ring — Inspection

The document titled Equipment / Furnishings — Emergency Floatation System Supply Hose Connection / Retaining Ring — Inspection is an airworthiness directive applicable to AIRBUS HELICOPTERS models AS 350, EC 130, EC 120 B, and EC175. It addresses inspection requirements for the emergency flotation system's supply hose connection and retaining ring to ensure continued airworthiness and safety. The directive focuses on maintaining the integrity of critical emergency equipment on these helicopter models.

Aug 25, 2023

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters EC 120 BAirbus Helicopters EC175

EASA AD 2023-0133

SUPERSEDED BY EASA AD 2023-0187

EASA Airworthiness Directive 2023-0133 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Airbus Helicopters AS 350 B3, EC 130 B4, and EC 130 T2 models. It addresses issues related to engine control microswitches and pilot twist grips, specifically targeting part numbers associated with these components to ensure safe engine power control operation. The directive mandates inspections, modifications, and corrective actions to prevent failure of engine power control during critical flight phases.

Jul 5, 2023

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 350 B3Airbus Helicopters EC 130 B4Airbus Helicopters EC 130 T2

EASA AD 2023-0131

Doors — Sliding Doors — Modification

EASA Airworthiness Directive 2023-0131 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Airbus Helicopters AS 350 and AS 355 models equipped with sliding doors. It addresses a safety issue related to the upper rail roller of the sliding doors, which may lead to in-flight detachment of the door. The directive mandates modifications to the sliding door mechanism to enhance safety.

Jul 3, 2023

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355

EASA AD 2023-0127

Main Rotor Drive — Main Gear Box Engine Coupling — Inspection

EASA Airworthiness Directive 2023-0127 is a mandatory safety directive addressing Airbus Helicopters EC 130 T2, EC 130 B4, and AS 350 series helicopters. It requires inspection of the main gear box engine coupling installation to detect inverted engine flange installations that could compromise power transmission to the main rotor. The directive applies to helicopters manufactured before specific dates in 2023 and aims to prevent potential loss of helicopter control.

Jun 27, 2023

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters EC 130 T2Airbus Helicopters EC 130 B4

EASA SIB 2023-06

Rupture of the Restraint System Buckle Cover

EASA Safety Information Bulletin 2023-06 is an airworthiness bulletin addressing the rupture of restraint system buckle covers on Airbus Helicopters AS 350 B2, AS 350 B3, AS 355 NP, and EC 130 T2 equipped with -198 series crew seats or -284 series passenger seats. The bulletin highlights reported occurrences of belt buckle ruptures manufactured by Anjou Aéronautique and provides safety recommendations to operators. It references Airbus Helicopters Safety Information Notice 3279-S-25 Revision 2 and SAFRAN SEATS Service Bulletin 198-25-009 Revision 1 for further guidance.

Jun 21, 2023

Safety Information BulletinMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355

EASA AD 2023-0107

[Correction] Equipment / Furnishings — Cargo Swing Frame — Inspection

EASA Airworthiness Directive 2023-0107 is a safety directive addressing Airbus Helicopters AS 350 B2, AS 350 B3, and EC 130 B4 models equipped with cargo hook Part Number 704A41811035 and any cargo swing frame. The directive mandates inspection of the cargo swing frame to prevent failure during flight, which could lead to load loss and potential helicopter control issues. It applies specifically to these helicopter models and their cargo swing installations.

Jun 2, 2023

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 350 B2Airbus Helicopters AS 350 B3Airbus Helicopters EC 130 B4

EASA AD 2023-0089

SUPERSEDED BY EASA AD 2024-0139

EASA Airworthiness Directive 2023-0089 is an airworthiness directive affecting Airbus Helicopters AS 350 B3 and AS 355 series helicopters. It addresses inspection and maintenance requirements for the upper fin assembly to prevent potential in-flight separation due to cracks and fractured attachment screws. The directive includes amendments to flight manuals, placard installations, and inspection intervals to ensure continued airworthiness.

May 4, 2023

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355Airbus Helicopters AS 350 B3

EASA AD 2023-0075

SUPERSEDED BY EASA AD 2023-0089

EASA Airworthiness Directive 2023-0075 is issued for Airbus Helicopters AS 350 and AS 355 models, addressing cracks found in the upper fin spar and fractured attachment screws. This directive mandates inspections, cleaning, and amendments to the Rotorcraft Flight Manual (RFM) to include a reduced never-exceed speed (Vne) for affected helicopters. The directive applies to all serial numbers of AS 355 E, F, F1, F2, N, NP helicopters and AS 350 B3 helicopters except those with modification MOD 073148.

Apr 7, 2023

Airworthiness DirectiveMaintenanceFlight OpsSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355

EASA AD 2023-0064

Main Rotor — Pitch Rod Upper Links — Marking / Inspection

EASA Airworthiness Directive 2023-0064 is issued for Airbus Helicopters AS 350, EC 130, AS 355, AS 365, and SA 365 models. It addresses the main rotor pitch rod upper links, specifically the pitch rod lever axis attachment screws with Part Number 350A31-1873-20, requiring marking and inspection to detect loss of screw torque. The directive aims to prevent potential loss of control due to failure of these components.

Mar 20, 2023

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355Airbus Helicopters SAAirbus Helicopters AS 365Airbus Helicopters EC 155Airbus Helicopters SA 365

EASA AD 2023-0044

Main Rotor Drive — Main Gearbox Planet Gear — Inspection

EASA Airworthiness Directive 2023-0044 is an airworthiness directive issued by the European Union Aviation Safety Agency concerning Airbus Helicopters AS 350, EC 130, and AS 355 models. It mandates repetitive inspections of the main gearbox (MGB) planet gear bevel wheel to detect particle contamination that could lead to structural failure of the MGB drive. The directive applies to specific MGB part numbers and requires compliance with Airbus Helicopters Alert Service Bulletins for inspection and corrective actions.

Feb 28, 2023

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355

EASA AD 2023-0028

SUPERSEDED BY EASA AD 2023-0214

EASA Airworthiness Directive 2023-0028 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Airbus Helicopters EC 130 T2 models with modification 074581 embodied in production. The directive addresses inspection requirements for the rear transmission shaft bearing support rivets and local structure to prevent failure of the tail rotor drive shaft and loss of yaw control. It includes instructions for inspecting rivet conditions and paint presence on the tail boom corner support.

Feb 1, 2023

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters EC 130 T2

EASA SIB 2019-10R1

Power Turbine Over-Speed Protection on ARRIEL 2D and ARRIEL 2B1 Engines

EASA Safety Information Bulletin 2019-10R1 is an airworthiness bulletin addressing power turbine over-speed protection on ARRIEL 2D and ARRIEL 2B1 engines installed on AS 350 B3 and EC 130 T2/B4 helicopters. It provides information on the design and safety features related to turbine blade shedding to prevent turbine disc burst and introduces electronic over-speed protection via FADEC software and wiring modifications. The bulletin includes references to Airbus Helicopters and SAFRAN service bulletins supporting these modifications.

Sep 21, 2022

Safety Information BulletinMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Safran ARRIEL 2

EASA SIB 2022-05

[Correction] Rotorcraft Flight Manual Update related to Servo Control Transparency

EASA Safety Information Bulletin 2022-05 is a correction notice addressing rotorcraft flight manual updates related to servo control transparency for Airbus Helicopters AS 350 (all models except B3 with dual hydraulic system), AS 355 E, and EC 120 B helicopters. It highlights the phenomenon of servo control transparency, which can cause unexpected flight control loads and flight path deviations, particularly affecting helicopters with single hydraulic systems and specific engine models like the ARRIEL 2B. The bulletin references previous service letters and airworthiness bulletins from Airbus Helicopters, FAA, and CASA Australia.

Jul 1, 2022

Safety Information BulletinSafety MgmtMaintenanceAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355Airbus Helicopters EC 120 B

EASA AD 2022-0128

Fuselage — Main Gearbox Bracket Bolts — Inspection

EASA Airworthiness Directive 2022-0128 is an airworthiness directive addressing inspection requirements for main gearbox bracket bolts on Airbus Helicopters AS 350, EC 130, and AS 355 models. It targets specific affected bolts with part numbers 22201BC080020L, 22201BC080021L, and 22201BC080022L to prevent potential separation of suspension-bar fittings. The directive mandates inspections and corrective actions to ensure continued airworthiness and safety.

Jun 30, 2022

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355

EASA AD 2022-0051

[Correction] Fuselage — Rear Structure Junction Frame Reinforcement Angles — Inspection

EASA Airworthiness Directive 2022-0051 is a corrective directive addressing inspection requirements for the rear structure junction frame reinforcement angles on Airbus Helicopters AS 350 and AS 355 models. It applies to specific serial numbers and affected parts, including junction frames reinforced by modification 073215 or equipped with certain reinforcement angles. The directive mandates repetitive inspections to detect cracks that could lead to tail boom loss and specifies optional modification as a terminating action.

Jun 9, 2022

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355

EASA AD 2022-0077-E

Rotors Flight Control — Flight Control Flexball Cables — Replacement

EASA Airworthiness Directive 2022-0077-E is an emergency directive addressing flight control flexball cables on various Airbus Helicopters models including AS 350, AS 355, EC 130, EC 135, EC 635, and MBB-BK 117 series. The directive identifies specific part numbers and serial numbers of flexball cables that are not compliant with approved design standards. It mandates replacement of these affected parts to ensure continued airworthiness and safe flight control operation.

Apr 29, 2022

Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355Airbus Helicopters EC135Airbus Helicopters 635Airbus Helicopters MBB-BK 117Airbus Helicopters EC 135Airbus Helicopters EC 635