1. Hello and Welcome to The Quality Forum Online...Continuing in the spirit of People Helping People !
    Dismiss Notice
Dismiss Notice
You must be a registered member in order to post messages and view/download attached files in this forum.
Click here to register.

Statistical Sampling Method for Field Failures

Discussion in 'Sampling, Standards and Inspection' started by MS Kumar, Dec 26, 2015.

  1. MS Kumar

    MS Kumar New Member

    Joined:
    Dec 26, 2015
    Messages:
    1
    Likes Received:
    0
    Trophy Points:
    1
    Hi Everyone,

    I working in an Automobile OEM, Would like to know what kind of Statistical Sampling method to be done for Field failure samples for Ex: my current failure rate of particular component is 5% with multiple failure modes, and we receive those failed samples to our center, how may failed sample should we have to investigate in order to cover all failure modes with 95% confidence level?

    Pls pour in your suggestions / ideas
     
  2. Bev D

    Bev D Moderator Staff Member

    Joined:
    Jul 30, 2015
    Messages:
    362
    Likes Received:
    359
    Trophy Points:
    62
    Location:
    Maine
    This is a good question, but before we can answer with useful advice we need to understnad a bit more abut your situation.

    Can you define what you mean by failure mode? Do the parts come back with any info from the dealer or vehicle repair center regarding the Customer complaint that led to removing the part?

    Why do feel that you need to sample the returns? I assume you are trying to create a pareto of faiures so that you can work on the highest ocurring failures? what actions will this plan support?
     
    Vthouta likes this.

Share This Page