Engine-driven Cooling Fan Disk Failures SIB 2010-08

The Civil Aviation Safety Authority (CASA) of Australia has
published the referenced advisory document (attached as pages 2
through 5 of this bulletin) to remind owners, operators and
maintainers of certain piston-engine powered helicopters of the
need to properly maintain the cooling fans and their drive systems
by using approved data from the current type certificate holder.
 

After reviewing the available information and recognising that
CASA is not the ‘State of Design’ authority for any of the affected
type designs, EASA concurs with the advisory and fully supports
the CASA recommendations contained therein. This SIB is
published to ensure that all owners, operators and maintainers of
the affected helicopters, registered in European Union Member
States or associated countries, are aware of these
recommendations.

SIB Attached