EASA Regulations for Airbus Helicopters EC635

28 airworthiness directives and regulations affecting Airbus Helicopters EC635.

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

EASA AD 2019-0087-E

Apr 24, 2019

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

EASA Airworthiness Directive 2019-0087-E is an emergency directive addressing Airbus Helicopters Deutschland GmbH EC135 and EC635 helicopter models. It mandates inspection and potential replacement of specific main rotor actuator single-axis actuators that have accumulated six years or more since manufacture or last overhaul. The directive aims to detect corrosion and prevent actuator tie bar failure that could lead to loss of helicopter control.

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

EASA AD 2018-0284

Dec 20, 2018

Rotors Flight Control – Main Rotor Actuator – Inspection

EASA Airworthiness Directive 2018-0284 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Airbus Helicopters Deutschland GmbH EC135 and EC635 helicopter models. It mandates a one-time inspection of the main rotor actuator nuts on specified part numbers to detect cracks and displacement that could impair flight control. The directive applies to all variants and serial numbers of these helicopter models.

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

EASA AD 2018-0210-E

Sep 25, 2018

Equipment & Furnishings — Hoist Carrier Assembly — Inspection

EASA Airworthiness Directive 2018-0210-E is an emergency directive addressing the inspection of the hoist carrier assembly on Airbus Helicopters Deutschland GmbH EC135 and EC635 helicopter models, excluding the P3H and T3H variants. It targets Goodrich electrical hoists with specific part numbers installed on these helicopters to ensure correct assembly and prevent potential safety hazards.

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

EASA AD 2018-0063

Mar 22, 2018

Rotors Flight Control — Cyclic Stick — Modification

EASA Airworthiness Directive 2018-0063 is an official safety directive issued by the European Union Aviation Safety Agency affecting Airbus Helicopters Deutschland GmbH EC135 and EC635 helicopter models. It addresses a flight control system issue related to the cyclic stick on these helicopters, specifically those equipped with autopilot and within certain serial number ranges. The directive mandates a modification to improve flight safety by installing a weight compensation for the cyclic stick.

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

EASA AD 2017-0243

Dec 6, 2017

Time Limits / Maintenance Checks – Airworthiness Limitations – Amendment

EASA Airworthiness Directive 2017-0243 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Airbus Helicopters Deutschland GmbH EC135 and EC635 helicopter models. It mandates compliance with updated airworthiness limitations and maintenance tasks as specified in the Airbus Helicopters EC135 Master Servicing Manual Chapter 04, Revision 23. The directive ensures continued airworthiness by enforcing life limits and maintenance intervals for critical components including the tail rotor hub body.

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

EASA SIB 2009-11

Apr 24, 2009

EC135 & EC635 - Operation with Emergency Flotation System ARMED

EASA Safety Information Bulletin 2009-11 is an advisory document addressing the operation of EC135 and EC635 helicopters equipped with an emergency flotation system. It highlights the need to follow specific procedures when the flotation system is set to ARMED to prevent unintentional release during flight. The bulletin references Eurocopter Deutschland Alert Service Information EC135-A108 Revision 01 for detailed guidance.

Safety Information Bulletin
  • Airbus Helicopters EC135
  • Airbus Helicopters EC635

EASA SIB 2008-45

May 27, 2008

WITHDRAWN - SEE EASA AD 2010-0058

EASA Safety Information Bulletin 2008-45 is an informational bulletin addressing incorrect fixed bearings in the main rotor and tail rotor flight control levers of EC135, EC635, and MBB-BK 117C-2 helicopters. The bulletin highlights inspection, repair, and replacement requirements as per Luftfahrt-Bundesamt Germany Airworthiness Directives and Eurocopter Deutschland GmbH Alert Service Bulletins. This bulletin is withdrawn and superseded by EASA Airworthiness Directive 2010-0058.

Safety Information Bulletin
  • Airbus Helicopters EC135
  • Airbus Helicopters EC635
  • MBB-BK 117C-2