From: koklee@innovalues.com
Date: 29 Mar 2000
Time: 21:05:06
my customer is using a combined sampling plan for it's incoming inspection , which is C=0 , n=5 for Dimensions , and AQL 0.65% for Cosmetic .
But , when they find a defect in their production line (where the lot has already been accepted using the above combined sampling plan during incoming inspection), they require us to perform 100% screening on the remainder in their store .
We have performed screening three times in the past 6 months , and we find no defective parts among the remaider ( ~ 30,000 pieces per lot ) .
I requested that he activates Screening only when defect fails AQL 0.65% , but was not approved .
The QA personnel claimed that the defect is functionally critical and he expects Zero defect at all time .
Is this an acceptable practise ? How should I approach this situation ?