General Description : QS 9000 Quality System
|Having gotten started in the Automotive Industry, we follow the
Automotive QS9000 procedures to track any ﬁ eld failures. If
we notice repeated failures of the same kind, we invoke our 8D,
also called Advanced Technical Analysis or “ATA” for short,
procedure. 8D stands for eight disciplines. The purpose of 8D ATA
is to determine the root cause of a defect and institute preventive
measures to stop future occurrences. In the event you experience a
repeat problem, we encourage you to immediately contact our tech
support group. Sometimes we may even become a little bit of a pest
in pursuing the “root cause” trail as the 8D ATA team’s sole charter
is to prevent future problems. The 8D Process has 8 distinct steps
and generates an 8D report as shown to the right.
1. Team Contact
This is the ﬁrst step of 8D process and is used to initiate a
team, a multi-disciplinary team that involves members who are
customers as well as employees of AVG/Autotech Controls. The
main purpose of this step is to have all the contact information
from all the parties to enable free communication. Also this
section includes data such as the part# of a product, Serial #,
Date 8D analysis started and the date it will be completed.
2. Problem Description
This step in 8D Process is one of the most critical
steps of solving a problem effectively and efﬁciently.
The main focus in this step is to gather all the necessary
information required to understand a problem as
described by a customer. It has two parts to it:
A) Customer Complaint
The ﬁrst and foremost important task is to effectively
communicate with a customer to understand
the complaint as described by the customer.
B) Technician’s Evaluation
Based on Customer’s Complaint, a technician validates
the issues as described by a customer to make sure that he
understands the problem. If for any reason a technician
cannot validate a complaint, he gets in touch with the customer
to inquire further to complete the validation process.
3. Possible Root Causes
After validating a complaint from a customer, the next
step is to identify the root cause of a problem. This step
involves performing a failure analysis and investigating
to determine the root cause of a problem. Before possible
root causes are identified, it is necessary that a
detailed description of the failure mechanism is provided to
show that the failure has been understood to the fullest.
The next step is to tie the symptoms with the possible root
causes. Steps 1-3 play a key role in understanding, investigating,
and narrowing down all the possible reasons for a failure.
This step solidiﬁes a relationship between a failure and the possible
cause of a failure. This link has to be justiﬁed with proper
documentation for validation and complete root cause analysis.
Once a relationship has been established between the root cause
and a failure, the very next step is to correct that problem. First
all suspect product is segregated for further testing. Design
and/or manufacturing is corrected to remove the failure mode.
After all the actions are taken to ﬁx a failed product, the next
step is to verify the relationship previously established between
the root cause and the failure. This requires extensive testing
and operation of a product within speciﬁcations to verify
that ﬁxing a root cause has eliminated the cause of failure.
One of the most important beneﬁts of 8D analysis is the
prevention program. If a root cause is identiﬁed to be present
in the design and/or manufacturing process of a product,
necessary changes are suggested to engineering department
to make sure all such root causes are eliminated from the
very design and/or manufacturing process of a product.
8. Congratulating Team
The last step of an 8D process is to congratulate the team members
who worked on all the 7 steps to completion. At AVG, acknowledgement
is the key to our better working environment!