by Emily Hill

8D problem solving for NCRs (includes internal training PPT)

ISO 9001:2015 requires your organisation to identify any outputs that do not conform to their intended requirements and ensure they are not delivered to your customers. Robust controls must be established and implemented. 

However, many organisations fail to properly manage nonconforming (NCR) outputs. A lack of data and process integration leads to quick conclusions made by a single department. Mistakes are repeated and risks associated with corrective actions are not considered. 

A technique commonly used for managing NCRs is 8D (eight disciplines). 

In this article, Kate Armitage, Head of Quality Assurance at Qualsys has explained 8D and included a template PPT you can use to train your internal team on using this problem solving technique for NCRs. 

8D based on facts

The eight disciplines

Discipline 1: Team

An interdisciplinary team must be set up for the purpose of processing the concern. The team leader coordinates all activities and reports to the customer. 

With Qualsys's software, administrators are able to allocate roles and responsibilities from the central management system. 

 

Discipline 2: Problem description

The team must define the issue, detailing who, what, when, where, why, how and how many. 

The below form in Issue Manager captures all the necessary fields. 

Issue log 8D

 

Discipline 3: Containment actions

In order to limit the damage, any supplies affected by the problem in the production facility, warehouse, at the subcontractor's premises, en route to the customer, or at the customer's premises, must be located, quarantined and marked immediately, or recalled if already delivered. 

Details

The supplier establishes what further containment actions are required e.g. inspections, sorting etc. need to be taken and checks their effectiveness. There must be coordinated activities to sort the deliveries and mark affected materials.  


Discipline 4: Defect cause(s)

Standard analytical methods, such as “Ishikawa” (fishbone diagram) or the 5 "Whys", must be used to determine the actual cause(s) of the problem.

This is where many businesses go wrong. 

Don't accept the first result. Encourage your team to challenge the real cause. 

fishbone - complete

[Example fishbone: Can be completed as a process within EQMS or as a file uploaded to the system]

 

Discipline 5: Planned corrective action(s)

After determining the cause(s) of the defect, there must be corrective actions to solve the problem in the short term. 

ISO 9001:2015 clause 8.7 requires your organisation to deal with nonconforming outputs in one or more of the following ways:

1. Correcting the fault

2. Segregation or containment of the output, product or service

3. Securing the return of the output, product or service

4. Suspension of the provision of products and services

5. Information the customer

6. Obtaining authorisation or acceptance under a concession.

Documented evidence of the effective­ness of these measures must also be provided.

 Sourcing procurement 8D

Discipline 6: Introduced corrective action(s)

Corrective actions, which reliably prevent the defect from recurring, must be defined in agreement with the relevant customer plant and in accordance with the effectiveness proven under Discipline 5.

 

Discipline 7: Prevent recurrence of the defect

Suitable comprehensive measures must be taken in order to prevent the defect from recurring in conjunction with similar products or processes.

Product and process documentation, such as the FMEA, Control Plan, guidelines, technical specifications, drawings and work instructions must be updated in line with the established cause(s) and corresponding corrective actions.

 

Discipline 8: Team success acknowledged / approval

The results that have been introduced effectively by the team are acknowledged by the team leader and approved by the customer.

 

Access the 8D training materials ppt for free here: 

8D process approach for problem solving

Tags: Continuous Improvement, Quality Culture