EASA Regulations for Airbus Helicopters MBB-BK117 D-3

8 airworthiness directives and regulations affecting Airbus Helicopters MBB-BK117 D-3.

Get the next one by email

New ADs and bulletins for Airbus Helicopters MBB-BK117 D-3, summarized like the ones below, every Monday.

EASA PAD 26-121

Oct 8, 2026

Equipment / Furnishings – System Interface Unit – Replacement

EASA Airworthiness Directive Proposal 26-121 is a regulatory document addressing the replacement of the System Interface Unit (SIU) on Airbus Helicopters Deutschland GmbH MBB-BK117 D-2 (except D-2m variant) and D-3 helicopters. The directive applies to SIU Manufacturer Part Number 503-24-6-G installed on helicopters with serial numbers 20001 to 20360 and 21001 to 21999. It aims to ensure continued airworthiness by mandating replacement of affected SIUs based on their time since manufacture or last overhaul.

Proposed AD
  • Airbus Helicopters MBB-BK 117
  • Airbus Helicopters MBB-BK 117 D-2
  • Airbus Helicopters MBB-BK 117 D-3
  • Airbus Helicopters MBB-BK117 D-2
  • Airbus Helicopters MBB-BK117 D-3

EASA PAD 26-111

Sep 22, 2026

Landing Gear – Emergency Flotation System Adhesive Label – Removal

EASA Airworthiness Directive Proposal PAD No. 26-111 addresses the removal of a non-certified Emergency Flotation System (EFS) adhesive label, Part Number 214794-0, installed on Airbus Helicopters MBB-BK117 D-2 and D-3 models with serial numbers 20001 to 20360. The directive targets the incorrect EFS gas cylinder pressure limits displayed on the label, which could affect float inflation during ditching. This proposal applies to helicopters manufactured by Airbus Helicopters Deutschland GmbH and related entities.

Proposed AD
  • Airbus Helicopters MBB-BK 117
  • Airbus Helicopters MBB-BK117 D-2
  • Airbus Helicopters MBB-BK117 D-3

EASA AD 2026-0151

Jul 30, 2026

Main Rotor Drive – Rotor Hub-Shaft – Inspection

EASA Airworthiness Directive 2026-0151 is an official safety directive addressing the inspection of the main rotor drive rotor hub-shaft on Airbus Helicopters Deutschland GmbH MBB-BK117 D-3 and D-3m helicopters. The directive mandates visual and eddy current inspections of specific rotor hub-shaft parts (MP/N D623M1501203 and D623M1501204) to detect cracks that could lead to main rotor transmission failure. This AD applies to all serial numbers of the affected helicopter models.

Airworthiness Directive
  • Airbus Helicopters MBB-BK 117
  • Airbus Helicopters MBB-BK117 D-3
  • Airbus Helicopters MBB-BK117 D-3m

EASA AD 2023-0213

Dec 8, 2023

Equipment / Furnishings — Hook Damper — Modification

EASA Airworthiness Directive 2023-0213 is an airworthiness directive addressing Airbus Helicopters Deutschland GmbH MBB-BK117 C-2, D-2, D-3, and D-3m helicopters. It focuses on the hook damper assemblies involving forged D-LOK and Slide-LOK hoist hooks and specific hook dampers and nuts. The directive mandates inspection and modification procedures to ensure safe operation of the affected hoist hook assemblies.

Airworthiness Directive
  • Airbus Helicopters MBB-BK 117
  • Airbus Helicopters MBB-BK117 C-2
  • Airbus Helicopters MBB-BK117 D-2
  • Airbus Helicopters MBB-BK117 D-3
  • Airbus Helicopters MBB-BK117 D-3m

EASA AD 2023-0175

Oct 5, 2023

ATA — Rotorcraft Flight Manual — Altitude Correction — Amendment ATA 21 — Air Conditioning — Cooling System — Modification

EASA Airworthiness Directive 2023-0175 is an amendment addressing altitude correction procedures and air conditioning system modifications for Airbus Helicopters Deutschland GmbH MBB-BK117 D-2, D-2m, D-3, and D-3m helicopters. The directive mandates changes to the Rotorcraft Flight Manual Supplement and replacement of specific condenser outlet grids with covers to correct airspeed and altitude indication errors. It applies to all serial numbers of the affected helicopter models.

Airworthiness Directive
  • Airbus Helicopters MBB-BK 117
  • Airbus Helicopters MBB-BK117 D-2
  • Airbus Helicopters MBB-BK117 D-2m
  • Airbus Helicopters MBB-BK117 D-3
  • Airbus Helicopters MBB-BK117 D-3m

EASA AD 2022-0208

Oct 11, 2022

Rotorcraft Flight Manual — Emergency and Malfunction Procedures — Amendment

EASA Airworthiness Directive 2022-0208 is an amendment concerning the Rotorcraft Flight Manual emergency and malfunction procedures for Airbus Helicopters Deutschland GmbH MBB-BK117 D-3 and D-3m helicopters, specifically serial numbers 20070, 21016 and up. The directive mandates updates to the flight manual to address potential DC power interruptions affecting essential busses during flight. This amendment applies to helicopters with TCDS number EASA.R.010 and involves updated emergency procedures to enhance flight safety.

Airworthiness Directive
  • Airbus Helicopters MBB-BK 117
  • Airbus Helicopters MBB-BK117 D-3
  • Airbus Helicopters MBB-BK117 D-3m

EASA AD 2021-0290

Dec 23, 2021

[Correction] Time Limits / Maintenance Checks — Airworthiness Limitations Section — Amendment

EASA Airworthiness Directive 2021-0290 is a correction issued on 23 December 2021 concerning Airbus Helicopters Deutschland GmbH MBB-BK117 D-3 and D-3m helicopters. It mandates compliance with updated airworthiness limitations and maintenance tasks as specified in the Airworthiness Limitations Section (ALS) to ensure continued airworthiness. The directive applies to all serial numbers of the affected helicopter models.

Airworthiness Directive
  • Airbus Helicopters MBB-BK 117
  • Airbus Helicopters MBB-BK117 D-3
  • Airbus Helicopters MBB-BK117 D-3m

EASA AD 2021-0160

Jul 5, 2021

Main Rotor System — Flex Control Unit Bearing Pin — Inspection / Modification

EASA Airworthiness Directive 2021-0160 is an airworthiness directive issued by the European Union Aviation Safety Agency concerning Airbus Helicopters Deutschland GmbH MBB-BK117 D-3 helicopters, including converted MBB-BK117 D-2 models. The directive addresses inspection and modification requirements for the main rotor system's flex control unit bearing pin to prevent potential unsafe conditions.

Airworthiness Directive
  • Airbus Helicopters MBB-BK 117
  • Airbus Helicopters MBB-BK117 D-3
  • Airbus Helicopters MBB-BK117 D-2