Suboptimal N Repair to Repair to Orig Zero full No Savings maintenance?? – efficiency Orig eff. eff. cost is Suboptimal? incremental Suboptimal Repair to Repair to Orig Zero full suboptimal No Savings maintenance?? – efficiency > original eff. cost is to more than efficiency incremental original efficiency? Or suboptimal to original? Suboptimal Y Replace Repair to Orig Discounted Suboptimal Original *if using efficiency eff. future repair efficiency or Efficiency original * Original efficiency in – efficiency first period – add cost of repair to original
Suboptimal efficiency N Repair to Orig eff. Repair to Orig eff. Zero – full cost is incremental Suboptimal? No Savings maintenance?? Suboptimal efficiency Repair to > original efficiency Repair to Orig eff. Zero – full cost is incremental suboptimal to more than original efficiency? Or suboptimal to original? No Savings maintenance?? Suboptimal efficiency Y Replace Repair to Orig eff. Discounted future repair – * Suboptimal efficiency or Original efficiency Original Efficiency *if using original efficiency in first period – add cost of repair to original
171557623.docx