Windows — Bubble Window Kit — Inspection / Modification
- Published
- Effective
- Deadline
- Replaces
- 2017-0054
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of Leonardo AW189 helicopters with the affected bubble window kit must perform inspections within 100 flight hours after 10 April 2017 and at intervals not exceeding 100 flight hours thereafter. For specified serial numbers, installation of a protective cover on the window handle is required within 100 flight hours after that date. Additionally, all affected helicopters must have the improved bubble windows kit installed within 100 flight hours after 25 April 2018 to terminate repetitive inspections.
Summary
EASA Airworthiness Directive 2018-0082 addresses safety concerns for Leonardo AW189 helicopters equipped with bubble windows kit Part Number 8G5620F00111. The directive mandates inspections and modifications to the bubble window installation to prevent in-flight window detachment. It applies to all serial numbers of the affected helicopters and requires compliance with specific service bulletins.
What changed
This directive supersedes EASA AD 2017-0054 and retains its inspection requirements while introducing a mandatory modification to install an improved bubble windows kit P/N 8G5620F00112. It also requires installation of a protective cover on the internal bubble window handle for certain serial numbers and establishes a terminating action for repetitive inspections upon modification.
Why it matters
This AD is critical for aviation professionals to prevent potential loss of bubble windows during flight, which could cause damage to the helicopter and pose safety risks to people on the ground. Operators and maintenance teams must ensure compliance to maintain airworthiness and avoid operational interruptions. The directive also clarifies compliance pathways and provides updated technical instructions for corrective actions.
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New ADs and bulletins for Leonardo S.P.A. Helicopters AW189 and AW189, summarized like this page, every Monday.