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Risk Priority Number (RPN)

Risk Priority Number (RPN) is a numerical value used in maintenance operations and management to assess the risk associated with a particular failure mode. It is calculated by multiplying the severity, occurrence, and detectability of a failure mode. The higher the RPN, the higher the risk associated with the failure mode. RPN is used to prioritize maintenance activities and identify potential areas of improvement. It is an important tool for maintenance teams to ensure that the most critical risks are addressed first. RPN is also known as Risk Priority Code (RPC) or Failure Mode Risk Priority Number (FMRPN).