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