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EASA Regulations for Airbus Helicopters MBB-BK 117

55 airworthiness directives and regulations affecting Airbus Helicopters MBB-BK 117.

EASA AD 2019-0258

Tail Rotor Drive — Titanium Bolts — Inspection / Replacement

EASA Airworthiness Directive 2019-0258 is an airworthiness directive addressing the inspection and replacement of titanium bolts, part number EN3740-060022F, installed on the tail rotor drive of Airbus Helicopters Deutschland GmbH MBB-BK117 D-2 helicopters. The directive requires a one-time inspection of these titanium bolts for potential defects due to improper heat treatment that could lead to hydrogen embrittlement. It applies to all serial numbers of the MBB-BK117 D-2 helicopter model.

Oct 18, 2019
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters MBB-BK 117Airbus Helicopters MBB-BK117 D-2

EASA AD US-2019-10-51

Fuselage - Fuselage Frame - Inspection

Federal Register Volume 84, Number 171 (September 4, 2019) Final Rule Airworthiness Directive 2019-10-51 addresses all Airbus Helicopters Deutschland GmbH Model MBB-BK 117 C-2 helicopters. This directive mandates inspection of the fuselage frame for fatigue cracks and prohibits installation of certain recessed medical wall components installed under Supplemental Type Certificate SR00592DE. The directive aims to mitigate risks of structural failure due to reported cracks in the fuselage frame.

Sep 12, 2019
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters MBB-BK 117Airbus Helicopters MBB-BK 117 C-2

EASA AD 2019-0208

Integrated Modular Avionics — Aircraft Management Computer Software — Update

EASA Airworthiness Directive 2019-0208 is an update concerning the Aircraft Management Computer software for Airbus Helicopters Deutschland GmbH MBB-BK117 D-2 helicopters. It addresses a software issue in the Integrated Modular Avionics system that caused erroneous low rotor RPM indications during One Engine Inoperative conditions. This directive applies to all serial numbers of the MBB-BK117 D-2 helicopter model.

Aug 22, 2019
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters MBB-BK 117Airbus Helicopters MBB-BK117 D-2

EASA AD 2019-0198

Flight Controls — Wiring Harness — Modification

EASA Airworthiness Directive 2019-0198 is an airworthiness directive addressing wiring harness modifications for Airbus Helicopters Deutschland GmbH MBB-BK117 D-2 helicopters. It targets specific wire harness trim connector backshells with part number M85049/90-13W02 manufactured by AMPHENOL or of unknown manufacturer. The directive aims to prevent potential short circuits in yaw and pitch trim actuators that could lead to loss of helicopter control.

Aug 15, 2019
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters MBB-BK 117Airbus Helicopters MBB-BK117 D-2

EASA AD 2019-0030

SUPERSEDED BY EASA AD 2019-0275

EASA Airworthiness Directive 2019-0030 is an airworthiness directive issued for Airbus Helicopters Deutschland GmbH MBB-BK117 D-2 helicopters. It addresses the inspection and replacement of engine mount bushings, specifically part number 105-60386, to prevent potential failure of engine mount front support pins. This directive mandates inspections and replacement with serviceable parts to ensure continued safe operation of affected helicopters.

Feb 13, 2019
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters MBB-BK 117Airbus Helicopters MBB-BK117 D-2

EASA AD 2018-0283

SUPERSEDED BY EASA AD 2020-0257

EASA Airworthiness Directive 2018-0283 is an airworthiness directive issued by the European Union Aviation Safety Agency affecting Airbus Helicopters Deutschland GmbH MBB-BK117 C-2 and D-2 helicopters. It addresses a safety issue related to the main rotor actuator (MRA) parts with part numbers B673M30A1002 and D673M30A1003. The directive mandates inspection and reporting requirements to ensure continued safe operation of these helicopters.

Dec 20, 2018
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters MBB-BK 117Airbus Helicopters MBB-BK117 C-2Airbus Helicopters MBB-BK117 D-2

EASA AD 18-139

WITHDRAWN - EXPLANATORY STATEMENT ATTACHED

EASA Withdrawal Statement for Proposed AD 18-139 announces the withdrawal of the proposed airworthiness directive concerning Airbus Helicopters BK117 D-2 and D-2m models equipped with Helionix Step 2 avionics. The withdrawal follows Airbus Helicopters' publication of Temporary Revision 3 to the Rotorcraft Flight Manual, which amended night operation procedures and restored an acceptable safety level. A modification application submitted by Airbus Helicopters is expected to provide a final fix for the identified unsafe condition.

Dec 13, 2018
Agency DecisionSafety MgmtFlight OpsAirbus Helicopters MBB-BK 117Airbus Helicopters BK117 D-2Airbus Helicopters BK117 D-2m

EASA AD 2018-0230

SUPERSEDED BY EASA AD 2019-0208

EASA Airworthiness Directive 2018-0230 is an airworthiness directive issued for Airbus Helicopters Deutschland GmbH MBB-BK117 D-2 helicopters. It addresses issues related to the Aircraft Management Computer software versions V5.0.2 and earlier, focusing on the integrated modular avionics and autopilot cruise height mode. The directive mandates software updates and flight manual amendments to ensure safe helicopter operation.

Oct 23, 2018
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters MBB-BK 117Airbus Helicopters MBB-BK117 D-2

EASA AD 2018-0225-E

Equipment & Furnishings — Hook Mount Assembly — Inspection

EASA Airworthiness Directive 2018-0225-E is an emergency directive addressing the inspection of the hook mount assembly on Goodrich rescue hoists, Part Number 44301-10-7, installed on MBB-BK117 C-2 and D-2 helicopters. The directive mandates a one-time inspection and possible replacement of the hook mount assembly to ensure correct assembly and safe operation. It applies to all serial numbers of the affected helicopter models.

Oct 18, 2018
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters MBB-BK 117MBB-BK117 C-2MBB-BK117 D-2

EASA AD 2018-0163

SUPERSEDED BY EASA AD 2021-0116

EASA Airworthiness Directive 2018-0163 is an airworthiness directive issued for Airbus Helicopters Deutschland GmbH MBB-BK 117 D-2 helicopters. It mandates inspection of the co-pilot collective lever wire harness and its routing to detect and correct any chafing or incorrect routing that could cause electrical short circuits and uncommanded system activations.

Jul 25, 2018
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters MBB-BK 117Airbus Helicopters MBB-BK 117 D-2

EASA AD 2016-0142R1

Main Rotor — Swashplate Assembly — Replacement / Inspection

EASA Airworthiness Directive 2016-0142R1 is a regulatory document addressing the replacement and inspection of the main rotor swashplate assembly on Airbus Helicopters Deutschland GmbH MBB-BK 117 and BO105 helicopter models. It applies to all serial numbers of MBB-BK117 A-1 through C-2e variants and BO105 A through LS A-3 variants, including STC-modified 'Superlifter' versions. The directive focuses on ensuring the integrity of swashplate bellows clamps and bellows to prevent loss of control due to clamp failure.

Apr 12, 2018
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters BO 105Airbus Helicopters MBB-BK 117Airbus Helicopters MBB-BK117Airbus Helicopters BO105

EASA AD 2011-0168R1

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.

Mar 23, 2018
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters EC135Airbus Helicopters 635Airbus Helicopters MBB-BK 117Airbus Helicopters EC 135Airbus Helicopters EC 635Airbus Helicopters MBB-BK117 C-2

EASA AD 2018-0061

Main Rotor — Blades Thimble — Inspection

EASA Airworthiness Directive 2018-0061 is an airworthiness directive issued by the European Aviation Safety Agency affecting Airbus Helicopters Deutschland GmbH MBB-BK 117 helicopter models A-1, A-3, A-4, B-1, B-2, and C-1. This directive mandates inspections of the main rotor blades' thimble to ensure continued airworthiness and safety. It applies to all serial numbers of the specified helicopter models.

Mar 20, 2018
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters MBB-BK 117Airbus Helicopters MBB-BK 117 A-1Airbus Helicopters MBB-BK 117 A-3Airbus Helicopters MBB-BK 117 A-4Airbus Helicopters MBB-BK 117 B-1Airbus Helicopters MBB-BK 117 B-2Airbus Helicopters MBB-BK 117 C-1

EASA AD 2018-0046

Tail Rotor Drive — Tail Gear Box — Inspection / Replacement

EASA Airworthiness Directive 2018-0046 is an airworthiness directive issued by the European Union Aviation Safety Agency concerning Airbus Helicopters Deutschland GmbH MBB-BK 117 series helicopters. It mandates inspection and possible replacement or repair of the tail gear box (TGB) bellcrank attachment arm on affected MBB-BK117 A-1, A-3, A-4, B-1, B-2, C-1, and C-2 helicopters to address detected cracks. The directive applies to TGB parts with specific part numbers and aims to prevent potential loss of helicopter control.

Feb 19, 2018
Airworthiness DirectiveMaintenanceSafety MgmtAirbus Helicopters MBB-BK 117

EASA AD 2017-0238

SUPERSEDED BY EASA AD 2019-0208

EASA Airworthiness Directive 2017-0238 is an airworthiness directive issued for Airbus Helicopters Deutschland GmbH MBB-BK 117 D-2 helicopters of all serial numbers. It addresses an issue related to erroneous low rotor RPM indication during One Engine Inoperative (OEI) conditions. The directive mandates updates to the Rotorcraft Flight Manual emergency procedures to mitigate risks associated with this condition.

Nov 30, 2017
Airworthiness DirectiveFlight OpsSafety MgmtAirbus Helicopters MBB-BK 117Airbus Helicopters MBB-BK 117 D-2