Home / RCA Methods / 8D / CAPA
ACTION METHODS · 09 / 12
8D / CAPA
Your customer wants an 8D. We make it one they accept.
A customer 8D is a test of whether you can be trusted with more business. We help you contain fast, prove both why the defect happened and why it escaped, and close with evidence your customer’s quality team will sign off.
D4 is where most 8Ds fail: the root cause is written, not proven.
Since the 1990s
30
years investigating
250+
investigations closed, incl. HiPOs
15
countries served
20+
countries of lead seminars
100+
nationalities trained
Climb the eight steps
Cracked brackets reached a car assembler. Walk the 8D.
Tap each step to see what we do and what your customer sees. Illustrative example.
D4 ROOT CAUSE · WHAT P3i DOES
Why it occurred (tool wear on a bending die) and why it escaped (visual check could not see hairline cracks), both proven.
WHAT YOUR CUSTOMER SEES
Evidence, not opinion: photographs, measurements, test results.
Why customers reject 8Ds
Most 8Ds fail at D4. The cause is written, not proven.
"Operator error" and "retrain the operator" are the most rejected root causes in supplier 8Ds.
Customers expect two causes: why it happened and why your checks did not catch it.
An independent investigator gives your 8D credibility your own team cannot claim.
Use it for
Customer complaints and 8D requests
CAPA in regulated industries
Audit nonconformities
On its own it cannot
Find the cause by itself: D4 needs a real RCA method
Work without evidence
Method names are given for reference. Several are proprietary or trademarked; P3i selects the approach that suits each case and does not claim licensed certification in proprietary methods.
An 8D due and a customer losing patience? A first call costs nothing, and we will tell you what D4 needs to show.
The P3i approach
How we investigate in your customer’s 8D format. Fact-finding, not fault-finding.
Every P3i investigation is led by a senior investigator and supported by internationally qualified process specialists. You will not receive a list of people to blame, or a long list of generic actions. You will receive the facts, the proven causes, and a short plan that closes the gaps, in this case and across your system.
Independent
No products, repairs or contracts to sell you afterwards.
Senior-led
Thirty years of investigation, from the first call to the final briefing.
Beyond the event
Process specialists find the other cracks before they fail.
Ready to present
Written for boards, buyers, insurers and regulators.
How P3i does it for you
- 01
Contain first
What to hold and check today, so the customer sees action.
- 02
Define the defect precisely
What, where, when, how many.
- 03
Prove the root cause
Occurrence and escape, both.
- 04
Correct and prevent
Actions that stop it here and on similar lines.
- 05
Verify and close
Evidence the customer’s auditor will accept.
What you receive
Call us when
Free 30-minute case assessment.
Tell us what happened. In confidence, we will tell you what the investigation should cover, how long it will take and what to preserve today.
Questions
What suppliers ask about 8D.
Can you use our customer’s 8D format?
Yes. We work in the customer’s own template, including automotive and pharmaceutical CAPA formats.
How fast can containment happen?
We help you plan containment on the first call; how fast it is completed depends on where suspect stock sits.
Why two root causes?
Customers want to know why the defect was made and why your checks let it through. Fixing only one invites a repeat.
Will you talk to our customer?
If you wish, we can join the review with your customer’s quality team to present the evidence.
Contain it. Prove it. Close it for good.
