EASA Regulations for Airbus Helicopters EC 135

3 airworthiness directives and regulations affecting Airbus Helicopters EC 135.

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New ADs and bulletins for Airbus Helicopters EC 135, summarized like the ones below, every Monday.

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 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 2011-0168R1

Mar 23, 2018

Lights — Instrument Lighting Display Brightness — Modification

EASA Airworthiness Directive 2011-0168R1 is a regulatory update addressing instrument lighting display brightness issues on Airbus Helicopters Deutschland GmbH EC 135, EC 635, and MBB-BK117 C-2 helicopters equipped with optional night vision goggle (NVG) systems. The directive mandates modifications to the electrical wiring in the overhead panel to prevent overheating of diodes in the NVG system, which can cause sudden maximum brightness of critical flight displays. This AD ensures continued safe operation by correcting a lighting system fault that could impair pilot visibility.

Airworthiness Directive
  • Airbus Helicopters EC135
  • Airbus Helicopters 635
  • Airbus Helicopters MBB-BK 117
  • Airbus Helicopters EC 135
  • Airbus Helicopters EC 635
  • Airbus Helicopters MBB-BK117 C-2