What is first time right?
A short definition of first time right, an example from manual assembly, and how Arkite handles it.
What is first time right?
First time right (FTR) means a product or task is completed correctly the first time, without rework, repair or scrap. The first time right rate is the share of units that pass without any correction.
- Built correctly the first time
- No rework, repair or scrap
- Measured as the share of units that pass without correction
First time right in manual assembly
Every unit that needs rework costs time, material and capacity, and errors found late, at end-of-line test or at the customer, cost the most. First time right is therefore a key measure for manual assembly.
First time right improves when errors are prevented at the step instead of found afterwards: clear guidance, checks at each step and immediate feedback to the operator.
Example: when a wrong part is flagged at the station and corrected immediately, the unit still leaves the station right the first time.
How Arkite handles it
- Clear guidance for every step and variant
- Errors flagged at the step, before the next one starts
- Rework instructions shown per failure
- Errors per step recorded to show where to improve
Questions about first time right
How is first time right measured?
As the share of units that pass all checks without rework or repair, per station, line or product.
What lowers first time right in manual assembly?
Typical causes are wrong or missing parts, skipped steps, variant mix-ups and inexperienced operators.
Is first time right the same as first pass yield?
The terms are often used interchangeably. Both describe the share of units produced correctly without rework.
See it on your own product.
A live demo shows how Arkite guides, checks and records manual work.