You are provided with the following information regarding a system that has been designed by your company of engineers:

• Failure rate =0.001
• Total operation time=20,000 hours
• MDT=Mean downtime = 72 hours
• Total number of maintenance incidents = 100
• Mean preventive maintenance time = 5 hours
• Mean logistic plus administrative time =48 hours

Estimate the following values:

Ai (Inherent Availability) =

Aa (Achieved Availability) =

Ao (Operational Availability) =

Mct_bar (Mean Corrective Time) =

MTBM (Mean Time Between Maintenance) =

MTBF (Mean Time Between Failures) =

M_bar (Mean Active Maintenance Time) =