FAA Proposes New Airworthiness Directive for Airbus Helicopters MBB-BK 117 D-2

The Federal Aviation Administration has put forward a proposal for a new airworthiness directive affecting all Airbus Helicopters Deutschland GmbH Model MBB-BK 117 D-2 helicopters. According to the Federal Register, the agency formulated this action following certification test findings related to a specific common cargo hook beam. These tests demonstrated that the installed equipment could lead to fuel leakage if a survivable accident were to occur.

To address this safety concern, the proposed directive mandates specific mechanical updates. Affected aircraft would require modifications to the common cargo hook beam and the fuel system, alongside the installation of structural reinforcements. Additionally, the directive would enforce a strict prohibition against installing the specified common cargo hook beam on any helicopter.

The targeted rotorcraft is a twin-engine German transport and multi-role utility machine with a maximum take-off weight of 3650.0 kg and an engine power of 666.7 kW. It features accommodations for up to 9.0 seats, supporting civil operations globally ranging from executive transit to emergency medical services through advanced dynamic systems and modern turbine technology.

Operators and owners of the affected model must prepare for these mandated modifications once the directive is finalized. The regulatory action aims to eliminate the identified hazard and ensure the continued safety of the rotorcraft during flight operations.

Sources: FAA (Federal Register)