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EASA Regulations for Airbus Helicopters AS 350 B3

23 airworthiness directives and regulations affecting Airbus Helicopters AS 350 B3.

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New ADs and bulletins for Airbus Helicopters AS 350 B3, summarized like the ones below, every Monday.

EASA AD 2025-0159R1

Placards and Markings – Unlock Sliding Door – Installation

EASA Airworthiness Directive 2025-0159R1 is an updated regulatory requirement addressing the installation of safety placards and markings for unlocking sliding doors on Airbus Helicopters models AS 350, AS 355, EC 120, and EC 130. This directive applies to all serial numbers of these helicopters except certain EC 120 B models with specific serial numbers. The directive mandates the installation of additional safety labels to improve emergency exit instructions.

Airworthiness Directive

Airbus Helicopters AS 350
Airbus Helicopters EC 130
Airbus Helicopters AS 350 B
Airbus Helicopters AS 350 B1
Airbus Helicopters AS 350 B2
Airbus Helicopters AS 350 B3
Airbus Helicopters AS 350 BA
Airbus Helicopters AS 350 BB
Airbus Helicopters AS 350 D
Airbus Helicopters EC 130 B4
Airbus Helicopters AS 355
Airbus Helicopters AS 355 E
Airbus Helicopters AS 355 F
Airbus Helicopters AS 355 F1
Airbus Helicopters AS 355 F2
Airbus Helicopters AS 355 N
Airbus Helicopters AS 355 NP
Airbus Helicopters EC 120 B
Airbus Helicopters EC 120

EASA AD 2026-0052R2

Instruments – Fuse Cover Attachment of Circuit Breaker Panel – Modification

EASA Airworthiness Directive 2026-0052R2 is a regulatory document addressing a safety issue in Airbus Helicopters AS 350 B2, AS 350 B3, and EC 130 B4 models. The directive mandates modification and reidentification of specific fuse covers on the circuit breaker panel to prevent interference with the pilot pedal, which could reduce yaw control. It applies to helicopters with certain modifications embodied and affected fuse cover part numbers.

Airworthiness Directive

Airbus Helicopters AS 350
Airbus Helicopters EC 130
Airbus Helicopters AS 350 B2
Airbus Helicopters AS 350 B3
Airbus Helicopters EC 130 B4

EASA AD 2026-0153

Time Limits / Maintenance Checks – Airworthiness Limitations Section – Amendment

EASA Airworthiness Directive 2026-0153 is an amendment addressing time limits and maintenance checks in the Airworthiness Limitations Section for SAFRAN HELICOPTER ENGINES ARRIEL 2 series engines. This directive applies to multiple ARRIEL 2 engine models installed on various helicopters including Airbus Helicopters AS 350 B3 (H125), EC 130 T2 (H130), MBB-BK117 D-2 (EC 145 T2 or H145), Sikorsky S-76C, Korea Aerospace Industries LAH and LCH, and AVIC AC312E helicopters. It mandates compliance with updated maintenance manuals and overhaul manuals to ensure continued airworthiness.

Airworthiness Directive

Safran ARRIEL 2
Airbus Helicopters AS 350 B3
Airbus Helicopters EC 130 T2
MBB-BK117 D-2
Sikorsky S-76C
Korea Aerospace Industries LAH
Korea Aerospace Industries LCH
AVIC AC312E

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.

Airworthiness Directive

Airbus Helicopters AS 350
Airbus Helicopters EC 130
Airbus Helicopters AS 355
Airbus Helicopters AS 350 B2
Airbus Helicopters AS 350 B3
Airbus Helicopters AS 355 N
Airbus Helicopters AS 355 NP
Airbus Helicopters EC 130 B4

EASA AD 2026-0052R1

Instruments – Fuse Cover Attachment of Circuit Breaker Panel – Modification

EASA Airworthiness Directive 2026-0052R1 is a regulatory update addressing a safety issue in Airbus Helicopters AS 350 B2, AS 350 B3, and EC 130 B4 models. The directive mandates modification of the fuse cover attachment on the circuit breaker panel to prevent interference with the pilot pedal, which could impair yaw control. This AD applies to specific affected parts identified by part numbers and requires compliance with updated service bulletin instructions.

Airworthiness DirectiveSuperseded

Airbus Helicopters AS 350
Airbus Helicopters EC 130
Airbus Helicopters AS 350 B2
Airbus Helicopters AS 350 B3
Airbus 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.

Airworthiness Directive

Airbus Helicopters AS 350
Airbus Helicopters EC 130
Airbus Helicopters AS 355
Airbus Helicopters AS 350 B3
Airbus Helicopters AS 355 F
Airbus Helicopters AS 355 F1
Airbus Helicopters AS 355 F2
Airbus Helicopters AS 355 N
Airbus Helicopters AS 355 NP
Airbus Helicopters EC 130 B4
Airbus Helicopters EC 130 T2

EASA AD 2026-0111

Tail Rotor Drive - Shaft Sleeves – Inspection

EASA Airworthiness Directive 2026-0111 is an airworthiness directive addressing the inspection of tail rotor drive shaft sleeves on Airbus Helicopters AS 350 B2, AS 350 B3, EC 130 B4, and EC 130 T2 models, excluding those with modification 079809. The directive mandates repetitive inspections of specific tail rotor drive shaft sleeves, part number 704A33698045, to detect damage caused by increased hardness due to high temperatures. This AD aims to prevent potential failure of the tail rotor drive shaft and loss of yaw control.

Airworthiness Directive

Airbus Helicopters AS 350
Airbus Helicopters EC 130
Airbus Helicopters AS 350 B2
Airbus Helicopters AS 350 B3
Airbus Helicopters EC 130 B4
Airbus 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.

Airworthiness Directive

Airbus Helicopters AS 350
Airbus Helicopters EC 130
Airbus Helicopters EC 120 B
Airbus Helicopters AS 350 B2
Airbus Helicopters AS 350 B3
Airbus Helicopters EC 130 B4

EASA AD 2023-0133

Engine Controls – Microswitches – Inspection / Modification

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.

Airworthiness DirectiveSuperseded

Airbus Helicopters AS 350
Airbus Helicopters EC 130
Airbus Helicopters AS 350 B3
Airbus Helicopters EC 130 B4
Airbus Helicopters EC 130 T2

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.

Airworthiness Directive

Airbus Helicopters AS 350
Airbus Helicopters EC 130
Airbus Helicopters AS 350 B2
Airbus Helicopters AS 350 B3
Airbus Helicopters EC 130 B4

EASA AD 2023-0089

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

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.

Airworthiness DirectiveSuperseded

Airbus Helicopters AS 350
Airbus Helicopters EC 130
Airbus Helicopters AS 355
Airbus Helicopters AS 350 B3

EASA AD 2017-0102R2

Engine Fuel & Control — High Pressure / Low Pressure Fuel Pump Metering Unit — Inspection / Replacement

EASA Airworthiness Directive 2017-0102R2 is an updated regulatory requirement addressing inspection and replacement of the high pressure/low pressure fuel pump metering unit on SAFRAN Helicopter Engines ARRIEL 2 series engines. These engines are commonly installed on Airbus Helicopters AS 350 B3, EC 130 B4, and Changhe Z11 helicopters. The directive mandates inspections and modifications to prevent uncoupling of the LP fuel pump impeller and HP fuel pump shaft, which can lead to engine power loss or in-flight shutdown.

Airworthiness Directive

Safran ARRIEL 2
Airbus Helicopters AS 350 B3
Airbus Helicopters EC 130 B4
Changhe Z11

EASA AD 2022-0083

Time Limits / Maintenance Checks – Airworthiness Limitations Section – Amendment

EASA Airworthiness Directive 2022-0083 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting SAFRAN Helicopter Engines ARRIEL 2 series engines, including models 2D, 2E, 2H, 2L2, and 2N. These engines are commonly installed on helicopters such as Airbus Helicopters AS 350 B3 (H125), EC 130 T2 (H130), MBB-BK117 D-2 (EC 145 T2 or H145), Korea Aerospace Industries LAH and LCH, and AVIC AC312E. The directive mandates compliance with updated airworthiness limitations and maintenance tasks as specified in the latest SAFRAN ARRIEL 2 maintenance manuals.

Airworthiness DirectiveSuperseded

Safran ARRIEL 2
Airbus Helicopters AS 350 B3
Airbus Helicopters EC 130 T2
MBB-BK117 D-2
Korea Aerospace Industries LAH
Korea Aerospace Industries LCH
AVIC AC312E

EASA AD 2016-0004R1

Engine Fuel & Control — Hydro-Mechanical Metering Unit — Inspection

EASA Airworthiness Directive 2016-0004R1 is an updated regulation addressing inspection requirements for the Hydro-Mechanical Metering Unit (HMU) on SAFRAN Helicopter Engines ARRIEL 2D engines, commonly installed on Airbus Helicopters AS 350 B3 and EC 130 T2 models. The directive mandates repetitive inspections and, if necessary, replacement of HMU components to prevent low fuel pressure warnings and potential engine shutdowns. It excludes engines with the post-mod TU 231 HMU from inspection requirements.

Airworthiness Directive

Safran ARRIEL 2
Airbus Helicopters AS 350 B3
Airbus Helicopters EC 130 T2

EASA AD 2010-0006-CN

CANCELLED: Time Limits / Maintenance Checks — Tail Rotor Pitch-Change Links — Inspection

EASA Airworthiness Directive Cancellation Notice 2010-0006-CN cancels the previous EASA AD 2010-0006 concerning time limits and maintenance checks for tail rotor pitch-change links on Airbus Helicopters AS 350 and AS 355 models. This cancellation applies to all serial numbers of AS 350 B, BA, BB, B1, B2, B3, D and AS 355 E, F, F1, F2, N, NP helicopters equipped with affected tail rotor pitch-change link parts. The notice confirms that the inspection requirements have been incorporated into updated Airworthiness Limitations Sections for these helicopter models.

Agency Decision

Airbus Helicopters AS 350
Airbus Helicopters EC 130
Airbus Helicopters AS 355
Airbus Helicopters AS 350 B
Airbus Helicopters AS 350 BA
Airbus Helicopters AS 350 BB
Airbus Helicopters AS 350 B1
Airbus Helicopters AS 350 B2
Airbus Helicopters AS 350 B3
Airbus Helicopters AS 350 D
Airbus Helicopters AS 355 E
Airbus Helicopters AS 355 F
Airbus Helicopters AS 355 F1
Airbus Helicopters AS 355 F2
Airbus Helicopters AS 355 N
Airbus Helicopters AS 355 NP

EASA AD 2021-0195

Rotorcraft Flight Manual — Engine Digital Electronic Control Unit Emergency Procedure — Amendment

EASA Airworthiness Directive 2021-0195 is an amendment concerning Airbus Helicopters AS 350 B3 and EC 130 T2 models equipped with ARRIEL 2D engines. It addresses issues related to the Full Authority Digital Engine Control (FADEC) units that may cause in-flight failures affecting fuel flow regulation and engine monitoring displays. The directive mandates changes to the Rotorcraft Flight Manual emergency procedures to improve pilot response to these failures.

Airworthiness Directive

Airbus Helicopters AS 350
Airbus Helicopters EC 130
Airbus Helicopters AS 350 B3
Airbus Helicopters EC 130 T2

EASA AD 2021-0123-E

Hydraulic Power — Tail Rotor Load Compensator — Functional Check / Modification

EASA Airworthiness Directive 2021-0123-E is an emergency directive affecting Airbus Helicopters AS 350 B, B2, B3, and BA models with specific serial numbers. It addresses a wiring non-conformity in the tail rotor load compensator hydraulic system that could lead to loss of hydraulic power and potential loss of helicopter control. The directive mandates a functional check and modification of the hydraulic system wiring to ensure safe operation.

Airworthiness Directive

Airbus Helicopters AS 350
Airbus Helicopters EC 130
Airbus Helicopters AS 350 B
Airbus Helicopters AS 350 B2
Airbus Helicopters AS 350 B3
Airbus Helicopters AS 350 BA

EASA AD 2019-0225-E

Main Rotor Drive - Main Gearbox Drive Shaft / Engine Coupling - Inspection

EASA Airworthiness Directive 2019-0225-E is an emergency directive addressing the inspection of the main gearbox drive shaft and engine coupling on Airbus Helicopters AS 350 B3 and EC 130 T2 models equipped with SAFRAN ARRIEL 2D engines. It mandates a one-time visual inspection of the affected parts on helicopters with less than 300 flight hours since first flight. The directive aims to ensure continued airworthiness following an accident involving an AS 350 B3 helicopter.

Airworthiness Directive

Airbus Helicopters AS 350
Airbus Helicopters EC 130
Airbus Helicopters AS 350 B3
Airbus Helicopters EC 130 T2

EASA AD 2019-0180

Engine Fuel & Control — Fuel Filter Pre-blockage Pressure Switch — Operational Check

EASA Airworthiness Directive 2019-0180 is an airworthiness directive addressing SAFRAN Helicopter Engines ARRIEL 2 series engines installed on various helicopters including Airbus Helicopters AS 350 B3, EC 130 B4, AS 365 N3, EC 155 B, and Sikorsky S-76C. The directive mandates operational checks and visual inspections of the fuel filter pre-blockage pressure switch to ensure proper functionality and prevent uncommanded engine shutdowns due to fuel contamination.

Airworthiness Directive

Safran ARRIEL 2
Airbus Helicopters AS 350 B3
Airbus Helicopters EC 130 B4
Airbus Helicopters AS 365 N3
Airbus Helicopters EC 155 B
Sikorsky S-76C

EASA AD 2017-0020R1

Tail Rotor — Pitch Rod — Inspection

EASA Airworthiness Directive 2017-0020R1 is an updated safety directive addressing inspection requirements for the tail rotor pitch rod on Airbus Helicopters AS 350 and AS 355 models. It mandates repetitive visual inspections of the elastomeric ball-joint of the tail rotor pitch rod to detect damage that could lead to loss of helicopter control. The directive applies to all serial numbers of AS 350 B, BA, BB, B1, B2, B3 and AS 355 E, F, F1, F2, N, and NP helicopters incorporating specific modifications.

Airworthiness Directive

Airbus Helicopters AS 350
Airbus Helicopters EC 130
Airbus Helicopters AS 355
Airbus Helicopters AS 350 B
Airbus Helicopters AS 350 BA
Airbus Helicopters AS 350 BB
Airbus Helicopters AS 350 B1
Airbus Helicopters AS 350 B2
Airbus Helicopters AS 350 B3
Airbus Helicopters AS 355 E
Airbus Helicopters AS 355 F
Airbus Helicopters AS 355 F1
Airbus Helicopters AS 355 F2
Airbus Helicopters AS 355 N
Airbus Helicopters AS 355 NP