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A3 problem solving template

An A3 problem solving template is a single sheet, named after the A3 paper size (297 × 420 mm, close to 11 × 17 inches), that takes one problem from background to follow-up in seven boxes: background, current condition, goal, root cause analysis, countermeasures, implementation plan and follow-up. The left side describes the problem and why it happens; the right side says what you will do about it and how you will know it worked. It follows the plan-do-check-act (PDCA) cycle. The PDF has the blank A3 on page 1 and a filled-in worked example on page 2. The Excel version has the same seven boxes with tables that work out the defect rate, count the confirmed causes, flag late actions and show whether each follow-up period met the goal, plus a worked example sheet.

Free to use: print it, copy it and edit it for your team. Enter your name and work email once to download.

The A3 problem solving templateBoxes for background, current condition, goal and root cause analysis on the left, and countermeasures, implementation plan and follow-up on the right.
Seven numbered boxesPlan side and do-check-act sideCountermeasure tableImplementation planFollow-up against the goalWorked example

When to use it

When to use an A3

  • A problem that keeps coming back, costs real money, or needs more than one department to fix.
  • When you need agreement from a manager or another team before you act: the A3 is the document you discuss.
  • To coach someone through problem solving, because thin boxes show where the thinking is thin.
  • Not for a quick fix you can make today. Use an action list, or a 5 Whys if you need to find the cause first.

How to fill it in

  1. 1

    Title, owner and date

    Name the problem in a few words, not the solution. Add the owner, the team and the date.

  2. 2

    Background

    Why this problem matters now, in business terms: safety, quality, delivery or cost, and who is affected.

  3. 3

    Current condition

    What is happening today, with facts from the gemba: a chart, a sketch of the process, the gap between the standard and what actually happens.

  4. 4

    Goal

    A measurable target with a date, for example cut scrap on line 2 from 4% to 2% by the end of June.

  5. 5

    Root cause analysis

    Use a fishbone diagram or the 5 Whys to get from the symptom to its causes, and mark each cause you have checked with data or on the floor.

  6. 6

    Countermeasures

    One or more for each checked root cause, with the cause it addresses and the effect you expect.

  7. 7

    Implementation plan

    Who does what by when, and the status of each action.

  8. 8

    Follow-up

    How and when you will check the result against the goal, what you found, and what you will standardize or share with other areas if it worked.

A filled-in example

Illustrative, not a benchmark

An A3 on burr scrap from a stamping press. The same example is filled in on page 2 of the PDF and in the Excel version.

The example A3's current condition and result

  • Burrs: 2080 parts scrapped
  • Other defects: 694 parts scrapped
  1. Six weeks before (2,774 of 73,000)3.8%above goal
  2. Weeks 5 to 8 after (610 of 48,000)1.27%below goal

Before: 2,774 of 73,000 parts scrapped, 3.8 percent, 75 percent of them burrs, against a goal below 1.5 percent. After the countermeasures: 1.27 percent over weeks 5 to 8.

Three quarters of the scrap was one defect, burrs, which is why one root cause could close most of the gap.
  • Background: scrap on press 4 is the plant's biggest quality cost this quarter, most of it on one bracket, part 4471.
  • Current condition: 2,774 parts scrapped of 73,000 made in six weeks, a 3.8% scrap rate; 2,080 of them (75%) were burrs.
  • Goal: below 1.5% on that part by 30 June.
  • Root cause: a 5 Whys on the burrs traced them to a die sharpened every four weeks by the calendar instead of by stroke count, after volume had doubled. Coil hardness was checked and ruled out.
  • Countermeasures: sharpen every 50,000 strokes, and add a burr check to the first-piece and hourly checks.
  • Follow-up: scrap reviewed weekly for eight weeks at 12,000 parts a week. It was below 1.5% from week 4 and averaged 1.27% over weeks 5 to 8 (610 of 48,000).

One sheet tells the whole story: anyone reviewing it can see the problem, the evidence, the cause, the fix and the result. The stroke-count interval went into the maintenance standard for every die on the press.

Common mistakes

  • Writing the solution in the title

    Start from the problem. The countermeasure comes after the analysis, not before it.

  • A current condition with no numbers

    Without a baseline you cannot set a goal or tell whether the countermeasure worked.

  • Root causes nobody checked

    Each cause should be confirmed with data or at the gemba, not agreed around a table.

  • Filling it in alone at a desk

    An A3 is meant to be discussed with the people who do the work and the people who must agree to the plan.

  • Stopping at implementation

    The follow-up box is where you find out whether the problem is actually solved.

In LeanSuite

Use this as a Lean Studio board

The same method is one of the 30 ready-made board templates in Lean Studio, LeanSuite's whiteboard: A3 Problem Solving, single-page structured problem-solving report following the Toyota A3 method.

  • Start from the A3 Problem Solving template: the seven A3 boxes laid out on one landscape board.
  • Write in the text boxes, add stickies for countermeasures and draw the current condition with shapes and arrows.
  • Drop a Column Graph or Line Graph widget into the current condition box so the numbers stay live.

Worked example · sample data

The sample A3 is about late deliveries on the North route, which rose in Q2. The current condition box gives the number, 84% on time against a target of 95%, and the pattern: most misses fall on Mondays. That pattern shaped the analysis. Two root causes were found: Monday pick lists were released late, and one forklift was shared between two docks. The countermeasures match them one to one: release Monday's lists on Friday at 15:00, and put a second forklift on the docks on Mondays. R. Patel owns the plan, due 12 August, and the follow-up is a weekly check on the tier 2 board. By week 33 the route was at 93% on time, so the team kept the A3 open for the last two points.

Eight boxes from background to results for a late-delivery problem, with root causes and countermeasures on stickies. Sample data.

Open this board in LeanSuite

A3 Problem Solving is one of the 30 ready-made boards in Lean Studio, LeanSuite's whiteboard. Try LeanSuite in your browser, or run it on your own lines for 90 days.

What Lean Studio is

How to run an A3 Problem Solving session

  1. 1One owner writes the A3; the team feeds it. The owner takes it round the people affected and rewrites it after each conversation, which is where the thinking happens.
  2. 2Fill the left side first, over days not hours: background, the current condition drawn from the floor with data, the goal as a number and a date, and the root cause analysis.
  3. 3Only then move to the right side: countermeasures matched to causes, the plan with owners and dates, and how the result will be checked.
  4. 4Review it with the sponsor in 15 minutes, standing at the board. If it needs explaining, it is not finished.
  5. 5Keep the A3 alive until follow-up shows the result held, then file it where the next team with the same problem will find it.

Common mistakes

  • Writing the right side first. Countermeasures chosen before the current condition is understood are guesses with a plan attached.
  • A background box full of history and a current condition box with no data.
  • A goal with no number or date.
  • More countermeasures than causes: each one should point at a cause on the left.
  • Filing the A3 at the plan stage. Follow-up is the box that proves the method worked.

Where it goes next in LeanSuite

  • A3 is one of the ready-made methodologies in Kaizen & Projects, with its own phases, owners, due dates and tracked savings; a recurring tag or an approved idea can become an A3 project in one click. Kaizen & Projects
  • The follow-up measure can be a KPI with a target and RAG ranges, flagged as soon as new data crosses a limit. KPI Dashboards

Download the template

Free to use: print it, copy it and edit it for your team. Enter your name and work email once to download.

Run this template in LeanSuite

LeanSuite's continuous improvement software runs every project the same way with built-in A3, DMAIC and PDCA templates, and tracks projected and actual savings for each one.

See it in a 45-minute demo

FAQ

A3 problem solving template: common questions

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