Equipment / Furnishings — Hook Damper — Modification
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of MBB-BK117 C-2, D-2, D-3, and D-3m helicopters must inspect affected hoist hook assemblies before the next hoist operation after 22 December 2023. Any defective hooks or nuts must be replaced and installed following the updated installation procedure. From the effective date, installation of affected assemblies is restricted unless the updated installation procedure is followed.
Summary
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.
What changed
EASA Airworthiness Directive 2023-0213 introduces a one-time inspection requirement for affected hoist hook assemblies and specifies an updated installation procedure to prevent damage caused by galling. It prohibits installation of affected assemblies unless installed following the updated procedure and requires replacement of any defective parts found during inspection. This is a new directive addressing a previously unregulated unsafe condition.
Why it matters
This directive is critical for operators and maintenance organizations to prevent potential failure of hoist hook assemblies, which could lead to loss of hoist load and injury. Compliance ensures continued airworthiness and operational safety of MBB-BK117 helicopters. It also impacts parts installation practices and maintenance procedures, requiring adherence to updated technical instructions.
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