RegNotify

EASA Regulations for Airbus Helicopters AS 355

57 airworthiness directives and regulations affecting Airbus Helicopters AS 355.

EASA AD 2026-0146

Equipment / Furnishings – Mechanical Dropping Control – Inspection

EASA Airworthiness Directive 2026-0146 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Airbus Helicopters AS 350 B2, AS 350 B3, AS 355 N, AS 355 NP, and EC 130 B4 models. The directive addresses inspection requirements for the mechanical dropping control system, specifically the dropping control part number 704A41811037, to prevent unintended load release during cargo operations.

Jul 24, 2026
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355Airbus Helicopters AS 350 B2Airbus Helicopters AS 350 B3Airbus Helicopters AS 355 NAirbus Helicopters AS 355 NPAirbus Helicopters EC 130 B4

EASA AD 2026-0132

Rotors Flight Control – Upper Ball Bearing End of the Main Rotor Servo-Controls – Inspection

EASA Airworthiness Directive 2026-0132 is an airworthiness directive addressing the inspection of the upper ball bearing ends of the main rotor servo-controls on Airbus Helicopters AS 350 B3, AS 355 (F, F1, F2, N, NP), and EC 130 (B4, T2) models. The directive mandates a one-time and recurring inspection of the nut tightening torque on affected parts to prevent potential disconnection of the upper ball bearing end from the main rotor servo-controls. This AD applies to specific part numbers equipped with certain nut retainers and aims to ensure continued safe flight control operation.

Jul 8, 2026
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355Airbus Helicopters AS 350 B3Airbus Helicopters AS 355 FAirbus Helicopters AS 355 F1Airbus Helicopters AS 355 F2Airbus Helicopters AS 355 NAirbus Helicopters AS 355 NPAirbus Helicopters EC 130 B4Airbus Helicopters EC 130 T2

EASA AD 2025-0287

Powerplant — Fuel Draining System — Inspection

EASA Airworthiness Directive 2025-0287 is an airworthiness directive addressing Airbus Helicopters AS 355 series, including AS 355 E, F, F1, F2, N, and NP models. It mandates inspections and corrective actions for the fuel draining system's rear cargo compartment hoses, specifically part number 350A21010123, to prevent potential damage from hot air leakage and fire risks. The directive includes operational checks, installation of thermal paper, and silicone tape application to affected parts.

Dec 17, 2025
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 355

EASA AD 2025-0159

Placards and Markings — Unlock Sliding Door — Installation

EASA Airworthiness Directive 2025-0159 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Airbus Helicopters AS 350, AS 355, EC 120, and EC 130 models. The directive addresses the installation of additional safety placards and markings for the sliding door unlock instructions on these helicopters. It applies to all serial numbers that have not incorporated modification 0720257.

Jul 24, 2025
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355Airbus Helicopters EC 120 B

EASA AD 2025-0052

Tail Rotor Drive — Fan Support Legs — Inspection / Replacement

EASA Airworthiness Directive 2025-0052 is an airworthiness directive addressing Airbus Helicopters AS 355 series helicopters, specifically models E, F, F1, F2, and N. It mandates inspections and potential replacement of the left-hand and right-hand tail rotor transmission fan support legs, identified by part numbers 355A34104006 and 355A34104106. The directive aims to prevent failure of these support legs which could lead to loss of tail rotor drive and control of the helicopter.

Feb 28, 2025
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 355

EASA AD 2025-0025

Equipment / Furnishings — Emergency Release Control of Cargo-Swing Installation — Inspection

EASA Airworthiness Directive 2025-0025 is an airworthiness directive issued by EASA concerning Airbus Helicopters AS 350 B2, AS 350 B3, AS 355 NP, AS 355 N, and EC 130 B4 models equipped with ONBOARD systems 3500LB having Part Number 704A41811035. The directive mandates inspection and potential adjustment or replacement of the emergency release control of the cargo-swing installation to ensure safe operation. This directive addresses a safety issue related to the incorrect adjustment of the release cable that could lead to loss of load during cargo swing operations.

Jan 23, 2025
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355

EASA AD 2021-0282R1

[Correction] Tail Rotor — Tail Rotor Head Pitch Change Unit Bearing Spacer — Marking / Check

EASA Airworthiness Directive 2021-0282R1 is a correction to the original AD addressing the tail rotor head pitch change unit bearing spacer on Airbus Helicopters AS 350 and AS 355 models. It mandates inspections, marking, and checks of specific tail rotor head spider pitch change units to prevent loss of pitch change control. The directive applies to all serial numbers of the affected helicopter models and specifies part numbers 350A33-2030-00, 350A33-2167-00, and 350A33-2167-01.

Jan 8, 2025
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355

EASA AD 2023-0154R1

Stabilizers — Vertical Upper Fin Assembly — Inspections

EASA Airworthiness Directive 2023-0154R1 is an updated safety directive addressing inspections of the vertical upper fin assembly on Airbus Helicopters AS 355 series (E, F, F1, F2, N, NP). It mandates cleaning and repetitive inspections of the right-hand upper fin spar to detect structural cracks that could lead to in-flight separation of the fin and potential loss of control. The directive also references installation of a reinforced upper fin assembly as a terminating action for inspections.

Jul 19, 2024
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 355

EASA AD 2012-0257-CN

CANCELLED: Tail Rotor — Laminated Half-Bearings — Inspection / Replacement

EASA Airworthiness Directive Cancellation Notice 2012-0257-CN cancels the previous EASA Emergency AD 2012-0257-E concerning inspection and replacement of laminated half-bearings on the tail rotors of Airbus Helicopters AS 350 and AS 355 models. This cancellation affects all serial numbers of AS 350 B, BA, BB, B1, B2, D, and most B3 helicopters except those with modification 075601, as well as AS 355 E, F, F1, F2, N, and NP helicopters. The directive addresses safety concerns related to premature failure of laminated half-bearings that could lead to tail rotor failure and loss of control in flight.

Jul 17, 2024
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355

EASA AD 2024-0139

Stabilizers — Vertical Fin — Inspection / Modification / Placards and Markings — Interior Placards — Installation / Aircraft Flight Manual / Airspeed Limitations — Amendment

EASA Airworthiness Directive 2024-0139 is an amendment addressing inspection, modification, and placard installation requirements for the vertical fin stabilizers of Airbus Helicopters AS 350 and AS 355 models. It applies to all serial numbers of AS 355 E, F, F1, F2, N, NP helicopters and AS 350 B3 helicopters except those with modification 073148 embodied in production. The directive mandates inspections, cleaning, flight manual amendments, placard installations, and introduces a reinforced upper fin assembly modification.

Jul 12, 2024
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355

EASA AD 2024-0134

Time Limits / Maintenance Checks — Airworthiness Limitations Section — Amendment

EASA Airworthiness Directive 2024-0134 is an amendment addressing time limits and maintenance checks in the Airworthiness Limitations Section for Airbus Helicopters AS 355 series, including models E, F, F1, F2, N, and NP. It mandates compliance with updated maintenance tasks and life limits as specified in the latest Airbus Helicopters AS 355 Aircraft Maintenance Manual Chapter 04 revisions. The directive ensures continued airworthiness by enforcing new and more restrictive maintenance requirements.

Jul 10, 2024
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 355

EASA AD 2024-0127

Tail Rotor Drive — Tail Rotor Drive Fan Wheel and Second Stage Impeller — Inspection / Replacement / Re-identification

EASA Airworthiness Directive 2024-0127 is an airworthiness directive applicable to Airbus Helicopters AS 355 E, F, F1, F2, and N models. It addresses the inspection, replacement, and re-identification of tail rotor drive fan wheels and second stage impellers with specific part numbers due to incorrect identification during production. The directive aims to ensure continued airworthiness and prevent potential loss of helicopter control.

Jul 3, 2024
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 355Airbus Helicopters AS 355 EAirbus Helicopters AS 355 FAirbus Helicopters AS 355 F1Airbus Helicopters AS 355 F2Airbus Helicopters AS 355 N

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 2023-0131

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 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 2023-0089

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 2022-0246

Main Rotor — Main Rotor Blades — Inspection

EASA Airworthiness Directive 2022-0246 is an airworthiness directive addressing inspection requirements for main rotor blades on Airbus Helicopters AS 350 and AS 355 models. It applies to specific part numbers of main rotor blades that have shown occurrences of debonding on the stainless steel leading edge protection. The directive mandates repetitive inspections and, depending on findings, repair or replacement of affected parts to ensure continued airworthiness.

Dec 12, 2022
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters AS 350Airbus Helicopters EC 130Airbus Helicopters AS 355