EUROCOPTER - Magnetic Particles Contamination in the Oil System of Power Transmission Assemblies
- Published
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Eurocopter helicopters should review and integrate the content of Eurocopter Safety Information Notice 2075-S-63 Revision 0 into their maintenance procedures. There is no mandatory compliance deadline, but timely adoption is recommended to enhance safety and maintenance effectiveness.
Summary
EASA Safety Information Bulletin SIB No: 2009-27 addresses magnetic particles contamination in the oil system of power transmission assemblies, specifically affecting Eurocopter AS332 L2 and EC225LP helicopters. The bulletin follows an accident investigation and updates maintenance procedures to improve gearbox debris identification and response. It recommends operators incorporate Eurocopter Safety Information Notice 2075-S-63 Revision 0 into their maintenance manuals.
What changed
This bulletin introduces revised pages to the Eurocopter Standard Practice Manual and maintenance manuals for the EC225LP and AS332L2 helicopters, enhancing instructions on identifying gearbox magnetic particles and the associated maintenance actions. These revisions were completed by Eurocopter and EASA following safety recommendations from the UK Air Accidents Investigation Branch.
Why it matters
The updated maintenance instructions help operators and maintenance organizations detect and respond to gearbox contamination more effectively, reducing the risk of power transmission failures. Incorporating these changes supports safer helicopter operations and compliance with safety recommendations derived from accident investigations.
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New ADs and bulletins for Eurocopter AS332 L2 and EC225LP, summarized like this page, every Monday.