H5 file unable to be opened as ucar/nc2/NetcdfFile

When running crawl across Windows Shares throgh DFS hosted on an Isilon (OneFS 7.2.0.2) this error frequently ocurrs:

WARN 2016-03-31 13:51:26,759 (Worker thread '14') - Solr exception during indexing file://///<Path>/FiberSim_demo.7z (500): Error from server at http://localhost:8984/solr/CORE: java.lang.NoClassDefFoundError: ucar/nc2/NetcdfFile
org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error from server at http://localhost:8984/solr/CORE: java.lang.NoClassDefFoundError: ucar/nc2/NetcdfFile

The Zip contains an H5 file and I do have connector-common-lib in the properties.xml file alongside an untoched Tika parser.

I hope this is a ManifoldCF exception rather than Solr, if it isn;t my humble apologies - a bit new to all of this.

File is available upon request - can't see a way of attaching it here but it's only 8Mb.

[Edit - updated issue as I discovered in the zip there was an H5 file and not a .part as I originally thought]