| Column | Description | |--------|-------------| | | System, subsystem or component being analysed | | Function / Requirement | What the item is supposed to do | | Failure Mode | How the function could be lost (e.g., “open circuit”, “overheating”) | | Failure Cause | Why the failure occurs (e.g., “worn bearing”, “software bug”) | | Failure Effect | Consequence on the system, process or end user | | Severity (S) | Rank (1–10) of potential impact | | Occurrence (O) | Likelihood of the failure mode happening (1–10) | | Detection (D) | Ability to detect failure before it affects the customer (1–10) | | RPN | Risk Priority Number = S × O × D | | Criticality Class | (Quantitative) mode criticality and item criticality | | Recommended Actions | Preventive / corrective measures | | Responsible & Due Date | Who does what by when | | Action Status / Results | New S, O, D and RPN after actions |
The Excel sheet calculated the severity. A '10' appeared in red. The probability was a '4'. Suddenly, the "Criticality" column calculated the product and turned a violent shade of violet. It was a "hot" failure mode—one that demanded an immediate engineering change.
Below are the essential building blocks. fmeca template excel hot
1 (Extremely unlikely) to 10 (Almost certain).
As he worked, the formulas felt less like math and more like a conversation. The template pushed back, demanding more mitigation. He added a redundant seal. The RPN dropped. The cell turned a soothing green. | Column | Description | |--------|-------------| | |
The "hot" trend is . Engineering managers are tired of subscription fatigue. A beautifully formatted, macro-enabled FMECA Excel sheet is the ultimate "air-gapped" security solution.
"We... we have the data, sir," Sarah stammered. "I’m just formatting the Severity and Detection indices." 1 (Extremely unlikely) to 10 (Almost certain)
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