{HEAD ~ A bolt attachment} is attached to {TAIL ~ the outer surface} of the fan case and has a composite boss with at least one threaded metallic insert 
is attached to
{ HEAD ~ A bolt attachment } is attached to { TAIL ~ the outer surface } of the fan case and has a composite boss with at least one threaded metallic insert
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH