MAN Diesel & Turbo Updates Turbocharger Safety Warning

Posted by Michelle Howard October 23, 2014

MAN Diesel & Turbo SE has released an update to Alert Service Bulletin ASB2013/02/18 containing important safety information related to NA and NR type grey cast iron turbochargers.

The update includes:

technical sequences and pre-requisites which may lead to a containment failure
the correction of a previously communicated risk reference level for single risks
enhanced safety instructions (intended to be distributed to vessel or plant crews)
the latest list of available upgrade solutions
the integration of turbocharger type NA29/S into ASB2013/02/18.

Lloyd's Register said all vessels that are potentially affected will have the three letter memo ‘MAN’ placed on Class Direct. The memo will contain the following text: “Owners’ attention is drawn to Class News 43/2014 and MAN Alert Service Bulletin ASB2013/02/18 regarding potential safety issues with NA and NR type turbochargers. This memo may be deleted by the surveyor if an approved upgrade kit has been fitted or the turbocharger has been replaced”.

All personnel involved in operating and maintaining engines with these turbocharger types, or who work in the close vicinity of these turbocharger types, are advised to read the update and follow its recommendations.