09/27/2018
The previous post dealt with parts ARRIVING at YOUR company for sampling and inspection. THIS post deals with YOUR parts being RETURNED. You visit your company's "off-site" storage facility and discover hundreds of boxes of your company's products returned by your customer over the past year for failing "acceptance sampling criteria". WHAT DO YOU DO??? Clearly, a major investigation into this issue needs to be done but, what do you do NOW? Micro Quality Control and Accreditation Service (www.microqualitycontrols.com.) would recommend that you:
1. contact your customer and see if they are STILL your customer,
2. assess if their "acceptable quality level" changed,
3. determine if their "specification limits" changed,
4. if the customer's criteria have changed, bring your production standards into agreement with those required by your customer,
5. if the customer's criteria have NOT changed, inspect EACH piece of the returned lots and using a Pareto Chart, determine the cause for failure,
6. effect corrective production procedures,
7. adjust/rebuild EACH of the "defective" returned items and submit them to your customer, and
8. initiate and develop a Statistical Process Control Program for your company to ensure that a mistake of this type does NOT happen again. Micro Quality Controls and Accreditation Service provides assistance to area .