EASA SIB 2006-03
Repairs for Messier-Bugatti carbon brakes P/Ns C20225( ), C20449( ), C20524( ), C20534( ), C20194( ) and C20210( ) by third parties invalidating the ETSO Authorisation
Summary
EASA Safety Information 2006-03 is a safety communication addressing unauthorized repairs to Messier-Bugatti carbon brakes with part numbers C20225, C20449, C20524, C20534, C20194, and C20210. The document highlights that third-party repairs not approved by Messier-Bugatti or EASA invalidate the ETSO Authorisation for these carbon brakes. This issue affects the safety and performance of the brakes used on aircraft equipped with these parts.
What Changed
This document introduces a warning that repairs performed by unauthorized third parties on specified Messier-Bugatti carbon brakes are not covered by the existing EASA ETSO authorisations. It identifies specific non-compliant repair characteristics and explains that such repairs invalidate the ETSO marking and approval. The document does not amend previous regulations but issues a new safety information notice to address this serious safety concern.
Why It Matters
This matters because unauthorized repairs can significantly degrade brake performance, leading to increased landing distances, reduced anti-skid efficiency, brake mechanical failures, and compromised aircraft controllability. Operators, maintenance organizations, and compliance teams must be aware that such repairs invalidate the ETSO Authorisation, potentially rendering the brakes unairworthy and increasing safety risks during critical phases of flight.
What To Do
Operators and maintenance personnel should inspect Messier-Bugatti carbon brakes with the specified part numbers for unauthorized repairs and absence of proper ETSO markings. Any suspect parts should be tagged as not airworthy and reported immediately to EASA and Messier-Bugatti. There is no explicit compliance deadline stated, but prompt reporting and corrective action are recommended to maintain safety and regulatory compliance.
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