First Pass Yield (FPY)
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Category:  
Strategic

The percentage of products manufactured correctly without rework or scrap on the first attempt.

What it Measures ?

How many products come out perfect the first time.

Relevant StakeHolders 

Quality Assurance Team, Production Line Lead

Why it Matters ?

Improves focus on first-pass quality.

In-depth Use Case / Real-world Example

FPY is a direct measure of production quality. It calculates the ratio of units produced without defects to the total units that went through the process. For example, if 10,000 units were manufactured in a day and 9,500 of them passed all quality checks without any rework, FPY = (9,500 / 10,000) × 100 = 95%. This metric helps identify where defects are occurring in the production line. In an automotive parts plant, a low FPY could reveal problems in welding or painting stages. Improving FPY not only reduces rework and scrap costs but also increases throughput and customer satisfaction. Regular monitoring allows teams to fine-tune processes and reduce quality-related bottlenecks.

KPI Definition

Business Value

Movement Direction

Sample Formula

(Good Units Produced / Total Units Produced) * 100

Should Aim For
1
2
3
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