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