EASA Regulations for Airbus Helicopters EC135

49 airworthiness directives and regulations affecting Airbus Helicopters EC135.

EASA AD 2022-0203

Sep 30, 2022

Time Limits / Maintenance Checks – Airworthiness Limitations Section – Amendment

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.

Airworthiness DirectiveSuperseded
  • Safran ARRIUS 2
  • Airbus Helicopters EC135
  • Airbus Helicopters EC635

EASA AD 2022-0143

Jul 8, 2022

Integrated Modular Avionics – Ethernet Network – Inspection

EASA Airworthiness Directive 2022-0143 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Airbus Helicopters Deutschland GmbH EC135, EC635, MBB-BK117, Airbus Helicopters EC 175 B, and H160-B helicopters. The directive addresses design deficiencies in the Integrated Modular Avionics Ethernet network that have caused multiple Multi-Function Display failures. It mandates inspections and corrective actions to ensure continued safe operation of these helicopter models.

Airworthiness DirectiveSuperseded
  • Airbus Helicopters EC175
  • Airbus Helicopters H160B
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters MBB-BK 117
  • Airbus Helicopters EC635
  • MBB-BK117
  • Airbus Helicopters EC175 B

EASA AD 2022-0097

Jun 1, 2022

Equipment / Furnishings — Instrument Flight Rules Screens — Removal

EASA Airworthiness Directive 2022-0097 is an official regulatory document addressing Airbus Helicopters Deutschland GmbH EC135, EC635, and MBB-BK117 helicopter models. It mandates the removal of specific Instrument Flight Rules (IFR) screens installed on these helicopters to ensure continued airworthiness and flight safety. The directive applies to all variants and serial numbers of the affected helicopter models.

Airworthiness Directive
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters MBB-BK 117
  • Airbus Helicopters EC635
  • MBB-BK117

EASA PAD 20-166

May 2, 2022

WITHDRAWN - EXPLANATORY STATEMENT ATTACHED

EASA Withdrawal Statement for Proposed AD 20-166 announces the withdrawal of the proposed airworthiness directive affecting Airbus Helicopters EC135 models P1, P2, P3, T1, T2, T3, including variants limited to CDS, CPDS, P2+, and T2+, as well as P3H and T3H. The withdrawal follows the publication of updated Airworthiness Limitations Sections by Airbus Helicopters and the issuance of EASA AD 2022-0067, which already mandates the required inspections. This withdrawal clarifies that the proposed directive is no longer necessary.

Proposed AD
  • Airbus Helicopters EC135
  • Airbus Helicopters 635

EASA AD 2022-0077-E

Apr 29, 2022

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.

Airworthiness Directive
  • Airbus Helicopters AS 350
  • Airbus Helicopters EC 130
  • Airbus Helicopters AS 355
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters MBB-BK 117
  • Airbus Helicopters EC 135
  • Airbus Helicopters EC 635

EASA AD 2022-0067

Apr 13, 2022

Time Limits / Maintenance Checks — Airworthiness Limitations Section — Amendment

EASA Airworthiness Directive 2022-0067 is an amendment addressing time limits and maintenance checks in the Airworthiness Limitations Section for Airbus Helicopters Deutschland GmbH EC135 and EC635 helicopter models. It mandates compliance with updated maintenance tasks and life limits as specified in the latest Airworthiness Limitations Section documents. This directive applies to all variants and serial numbers of the EC135 and EC635 helicopters.

Airworthiness Directive
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters EC635

EASA AD 2022-0023

Feb 3, 2022

Air Conditioning — Air Conditioning System — Deactivation

EASA Airworthiness Directive 2022-0023 is an airworthiness directive addressing the air conditioning system on Airbus Helicopters Deutschland GmbH EC135 and EC635 helicopter models. It targets helicopters with specific serial numbers equipped with an affected air conditioning system soft start unit part number ES59185-2 installed on compressor/condenser pallets P/N 135-0553-1 or P/N 135-0566-2. The directive mandates deactivation of the air conditioning system to prevent electrical malfunctions.

Airworthiness Directive
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters EC635

EASA AD 2020-0033R1

Dec 10, 2021

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.

Airworthiness Directive
  • Safran ARRIUS 2
  • Airbus Helicopters EC135
  • Leonardo A109
  • Kamov 226T

EASA AD 2021-0149

Jun 21, 2021

Equipment / Furnishings — Emergency Flashlight — Replacement

EASA Airworthiness Directive 2021-0149 is an airworthiness directive issued by the European Union Aviation Safety Agency concerning Airbus Helicopters Deutschland GmbH EC135 and EC635 helicopter models. It addresses the replacement of emergency flashlights with part number 11359000001 due to safety concerns. The directive applies to all variants and serial numbers up to 820 inclusive of these helicopter models.

Airworthiness Directive
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters EC635

EASA AD 2021-0066

Mar 8, 2021

Equipment / Furnishings — Outboard Load System Fittings — Inspection / Re-identification

EASA Airworthiness Directive 2021-0066 is an airworthiness directive addressing inspection and re-identification of outboard load system fittings on Airbus Helicopters Deutschland GmbH EC135 and EC635 helicopter models. It applies specifically to serial numbers 0886 to 1166 inclusive, excluding certain serial numbers and helicopters with a specific service bulletin embodied. The directive mandates inspection and re-identification of affected fittings with part number L851M2810103 to ensure continued airworthiness.

Airworthiness Directive
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters EC635

EASA AD 2021-0050

Feb 23, 2021

Tail Rotor — Blades — Replacement / Re-identification

EASA Airworthiness Directive 2021-0050 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Airbus Helicopters Deutschland GmbH EC135 and EC635 helicopter models. It addresses the replacement and re-identification of tail rotor blades and head assemblies with specific part numbers due to a reduced life limit established for certain blades operated on higher-load Group 1 helicopters. The directive applies to all variants and serial numbers of the specified helicopter models.

Airworthiness Directive
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters EC635

EASA AD 2021-0011

Jan 12, 2021

Equipment / Furnishings — Outboard Load System — Inspection / Modification

EASA Airworthiness Directive 2021-0011 is an airworthiness directive addressing the inspection and modification of the outboard load system on Airbus Helicopters Deutschland GmbH EC135 and EC635 helicopter models. It specifically targets Goodrich hoists with certain part numbers and their hook assemblies to prevent potential detachment of external loads or persons during hoist operations.

Airworthiness Directive
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters EC635

EASA AD 2018-0168R1

Dec 18, 2020

Tail Rotor – Blade – Re-identification / Life Limit

EASA Airworthiness Directive 2018-0168R1 is an amendment concerning Airbus Helicopters Deutschland GmbH EC135 and EC635 helicopter models. It addresses the tail rotor blades with part numbers L642A2002101 and L642A2002111, focusing on their life limits and re-identification following changes in manufacturing processes. The directive ensures continued airworthiness by specifying service life and replacement requirements for affected tail rotor blades.

Airworthiness DirectiveSuperseded
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters EC635

EASA AD 2020-0282

Dec 17, 2020

Tail Rotor — Blades — Inspection

EASA Airworthiness Directive 2020-0282 is an airworthiness directive issued by the European Union Aviation Safety Agency concerning the inspection of tail rotor blades on Airbus Helicopters Deutschland GmbH EC135 and EC635 helicopter models. The directive applies to specific tail rotor blade part numbers and requires a one-time dimensional inspection to detect geometrical non-conformities in the blade root section. It aims to ensure continued airworthiness and prevent potential blade failure that could lead to loss of helicopter control.

Airworthiness Directive
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters EC635

EASA AD 2020-0105

May 11, 2020

Rotors Flight Control — Main Rotor Actuator Single-Axis Actuators — Inspection / Replacement

EASA Airworthiness Directive 2020-0105 is an airworthiness directive issued by the European Union Aviation Safety Agency concerning Airbus Helicopters Deutschland GmbH EC135 and EC635 helicopter models. It addresses inspection and replacement requirements for main rotor actuator single-axis actuators with specific part numbers to ensure continued airworthiness and flight safety. The directive applies to all variants and serial numbers of the affected helicopter models.

Airworthiness Directive
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters EC635

EASA AD 2020-0102

May 6, 2020

Rotors Flight Control — Tail Rotor Control System — Inspection

EASA Airworthiness Directive 2020-0102 is an airworthiness directive addressing the tail rotor control system inspection for Airbus Helicopters Deutschland GmbH EC135 and EC635 models, including various subtypes up to serial number 1276. It mandates inspections of the tail rotor control system to ensure safety after hard landings and to prevent potential control failures. The directive applies to all affected EC135 and EC635 helicopters as specified.

Airworthiness Directive
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters EC635

EASA AD 2020-0099

May 5, 2020

Tail Rotor Drive — Titanium Bolts — Identification / Replacement

EASA Airworthiness Directive 2020-0099 is an airworthiness directive addressing Airbus Helicopters Deutschland GmbH EC135 and EC635 helicopter models. It concerns the identification and replacement of certain titanium bolts (Part Number L535M3001201) used in the tail rotor drive, which may have been improperly heat treated, leading to potential hydrogen embrittlement. This directive mandates inspection and, if necessary, replacement of affected titanium bolts to ensure continued safe operation.

Airworthiness Directive
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters EC635

EASA AD 2020-0064

Mar 19, 2020

Equipment / Furnishings — Emergency Flotation System / Inflation Hoses — Inspection

EASA Airworthiness Directive 2020-0064 is an airworthiness directive addressing the inspection of emergency flotation systems and inflation hoses installed on various Airbus Helicopters models including MBB-BK117, EC 135, EC 120 B, EC 175, AS 332, AS 350, EC 130, AS 355, SA 365, AS 365, and EC 155 helicopters. The directive mandates inspection and possible replacement of affected float supply hoses to ensure proper inflation of emergency flotation devices. It applies to specific part numbers and serial numbers as detailed in the associated service bulletins.

Airworthiness Directive
  • Airbus Helicopters AS 350
  • Airbus Helicopters EC 130
  • Airbus Helicopters AS 355
  • Airbus Helicopters EC 120 B
  • Airbus Helicopters EC175
  • Airbus Helicopters SA 330
  • Airbus Helicopters AS 332
  • Airbus Helicopters EC 225
  • Airbus Helicopters SA
  • Airbus Helicopters AS 365
  • Airbus Helicopters EC 155
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters MBB-BK 117
  • Airbus Helicopters MBB-BK117
  • Airbus Helicopters EC 135
  • Airbus Helicopters EC 175
  • Airbus Helicopters SA 365

EASA AD 2020-0013

Jan 29, 2020

Fire Protection — Hand-held Fire Extinguishers — Replacement

EASA Airworthiness Directive 2020-0013 is an airworthiness directive addressing fire protection on various Airbus Helicopters, Leonardo, and WSK PZL – ŚWIDNIK helicopter models. It specifically targets the replacement of certain umlaut engineering GmbH Halon-free hand-held fire extinguishers with manufacturing defects that could render them inoperative. The affected helicopter models include AS 332, AS 365, EC 155, EC 175, EC 225, SA 330, SA 365, EC135, EC635, MBB-BK117, AB139, AB 204, AB 205, AB 212, AB 412, AS-61, AW139, AW169, AW189, and PZL W-3A series helicopters.

Airworthiness Directive
  • Airbus Helicopters EC175
  • Airbus Helicopters SA 330
  • Airbus Helicopters AS 332
  • Airbus Helicopters EC 225
  • Airbus Helicopters SA
  • Airbus Helicopters AS 365
  • Airbus Helicopters EC 155
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters MBB-BK 117
  • Leonardo S.P.A. Helicopters AB139
  • Leonardo S.P.A. Helicopters AW139
  • Leonardo S.P.A. Helicopters AB204
  • Leonardo S.P.A. Helicopters AB205
  • Leonardo S.P.A. Helicopters AB212
  • Leonardo S.P.A. Helicopters AB412
  • Leonardo S.P.A. Helicopters AS-61
  • Leonardo S.P.A. Helicopters AW169
  • Leonardo S.P.A. Helicopters AW189
  • Wsk Pzl-Swidnik PZL W-3A
  • Airbus Helicopters EC 175
  • Airbus Helicopters SA 365
  • Airbus Helicopters EC635
  • Airbus Helicopters MBB-BK117
  • Leonardo AB139
  • Leonardo AB 204
  • Leonardo AB 205
  • Leonardo AB 212
  • Leonardo AB 412
  • Leonardo AS-61
  • Leonardo AW139
  • Leonardo AW169
  • Leonardo AW189
  • WSK PZL – ŚWIDNIK PZL W-3A

EASA AD 2019-0199

Aug 16, 2019

Tail Rotor Drive - Ti-Bolt - Inspection / Replacement

EASA Airworthiness Directive 2019-0199 is an airworthiness directive addressing the inspection and replacement of titanium (Ti) bolts, part number L535M2001203, installed on the forward tail rotor drive shaft of Airbus Helicopters Deutschland GmbH EC135 and EC635 helicopter models. The directive applies to all variants and serial numbers of these helicopters. It mandates inspection and, if necessary, replacement of affected Ti-bolts to ensure continued airworthiness.

Airworthiness Directive
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters EC635