2010-20090817004 B5540WZZ-1C1

Previously name EASA 2010-04.
The Federal Aviation Administration (FAA) has published the referenced UPN as a result of an investigation that revealed that certain balls, intended for use in ball bearings, may have received improper heat-treatment. After reviewing the available information, EASA concurs with and fully supports the FAA recommendations contained in the UPN. This SIB is published to ensure that aircraft owners, operators, manufacturers, maintenance organisations and parts distributors in Europe are aware of these recommendations.