The fall arrest system may also include {HEAD ~ a davit arm} disposed on {TAIL ~ the post} via one or more hinges 
The fall arrest system may also include { HEAD ~ a davit arm } disposed on { TAIL ~ the post } via one or more hinges
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH