222x Filetype XLSX File size 0.03 MB Source: www.lockheedmartin.com
Sheet 1: Instructions
Purpose | |
FMEA is a technique utilized to define, identify, and eliminate known or potential failures or errors from a product or a process | |
How to fill out the form | |
1. Review the product, service, or process | |
2. Brainstorm then sort the possible failure modes | |
3. List one or more potential effect for each failure mode | |
4. Assign ratings for severity (S) for each effect | |
5. Determine potential causes of each failure mode | |
6. Assign ratings for occurrence (O) for each cause | |
7. List current monitors and controls for each failure mode | |
8. Assign ratings for detection (D). This is the likelihood that the current control will detect the failure mode | |
9. Calculate the Risk Priority Number (RPN). RPN = S * O * D | |
10. Develop a plan to eliminate or reduce the risk for the highest risks (Mistake Proofing should come in here) | |
11. Implement the plan | |
12. Recalculate the RPN |
Effect | Severity of Effect | Ranking (1-10) | Ranking (1-5) |
Hazardous – Without Warning | Endangers machine or operator. Failure will occur without warning. | 10 | 5 |
Hazardous – With Warning | Endangers machine or operator. Failure will occur with warning. | 9 | |
Very High | Major disruption to process. 100% may have to be scrapped. Inoperable, loss of primary function. Customer very dissatisfied. | 8 | 4 |
High | Minor disruption to process. Product may have to be sorted (good or scrap). Operable but at reduced performance level. Dissatisfied customer. | 7 | |
Moderate | Minor disruption to process. Portion may have to be scrapped. Operable but without all of the conveniences. Customer experiences discomfort. | 6 | 3 |
Low | Minor disruption to process. 100% may require rework. Operable, but some conveniences at a reduced level. Some customer dissatisfaction. | 5 | |
Very Low | Minor disruption to process. Output may have to be sorted and a portion reworked. Fit and finish does not conform. Noticeable by most customers. | 4 | 2 |
Minor | Minor disruption to process. A portion may have to be reworked at rework station. Fit and finish does not conform. Noticed by average customers. | 3 | |
Very Minor | Minor disruption to process. A portion may have to be reworked in station. Defect noticed by discriminating customers. | 2 | 1 |
None | No effect | 1 |
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