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- since 1996 -
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Career Discussions
Angelo
Italy, Joined Nov 2012, 13

Angelo

Italy,
Joined Nov 2012
13
17:19 Jan-17-2014
Operator's performance review

Hello guys,

I kindly ask your support for the following: I need to include an individual defect finding rate monitoring in the periodical performance review of our NDT operators.
Do you have any suggestion about how to do it?
thanks in advance for your help

 
 Reply 
 
Nigel Armstrong
Nigel Armstrong
17:53 Jan-17-2014
Re: Operator's performance review
In Reply to Angelo at 17:19 Jan-17-2014 (Opening).

The easiest sensible way is periodically to give her/him a test piece with known dimensioned defects in and see how accurately s/he reports them. Of course you'll need to invest to have a good representative selection of flawed test pieces.

 
 Reply 
 
anjafo
NDT Inspector
Norway, Joined Aug 2009, 204

anjafo

NDT Inspector
Norway,
Joined Aug 2009
204
18:40 Jan-17-2014
Re: Operator's performance review
In Reply to Nigel Armstrong at 17:53 Jan-17-2014 .

as suggested best way to check competence is by flawed test piece but to check how many defects they are finding on job will be dependent on your reporting techniques.

 
 Reply 
 
Peter Bruckner
NDT Inspector, NDT Manager
United Kingdom, Joined Jul 2008, 21

Peter Bruckner

NDT Inspector, NDT Manager
United Kingdom,
Joined Jul 2008
21
21:25 Jan-17-2014
Re: Operator's performance review
In Reply to Angelo at 17:19 Jan-17-2014 (Opening).

Hi Angelo,
If I understand the requirement correctly what should be monitored is the defect finding rate of inspectors during normal inspection of product. This should then be compared to other inspectors and the inspectors own historical defect finding rate. Differences would indicate over cautious or blasé inspectors or other changes that require investigation.
Regards
Peter

 
 Reply 
 
angelo
Italy, Joined Nov 2012, 13

angelo

Italy,
Joined Nov 2012
13
16:49 Jan-19-2014
Re: Operator's performance review
In Reply to Peter Bruckner at 21:25 Jan-17-2014 .

Many thanks to all of you for the interesting suggestions.
NIgel, I started to do as you said but I was concerned about how to demonstrate the finding rate during standard production and not on artificial flawed parts so I moved to what Peter is suggesting.
With this method my concern is that our normal scrap rate is near to zero so it is difficult to understand if the results are due to a strong process or improper operation.
Anyway, currently I' m collecting both data types in order to show and discuss them later with the customer.
Thank you again to everybody.

 
 Reply 
 
Nigel Armstrong
Engineering, - Specialist services
United Kingdom, Joined Oct 2000, 1096

Nigel Armstrong

Engineering, - Specialist services
United Kingdom,
Joined Oct 2000
1096
10:29 Jan-20-2014
Re: Operator's performance review
In Reply to angelo at 16:49 Jan-19-2014 .

Angelo

First, do you have confidence in your operators (I note NOT technicians). It sounds not. How do they perform on the simulated defective test pieces and what information can you derive from historical review?

You could select whom you consider to be the best operator to have a roving cross-checker role, at least until you are certain that the operators are complying with the work instruction to the best of their ability. Her/his task is random re-testing of each operator's passed product and re-examination of all rejects.

Management should not (but usually do) shirk their responsibility for the quality of inspection - personnel selection, training, procedure and motivation all comes from management.

 
 Reply 
 
angelo
Italy, Joined Nov 2012, 13

angelo

Italy,
Joined Nov 2012
13
20:56 Jan-20-2014
Re: Operator's performance review
In Reply to Nigel Armstrong at 10:29 Jan-20-2014 .

Nigel,
I apologize for the misunderstanding caused by my poor ability to share my thoughts in English.
I' m very confident about my operators and up to now we did not have any claim from customers for improper NDT operation.
I personally carry out my performance reviews and compare my results with those of my colleagues, finding them comparable and satisfactory ( being the accountable Level 3, I hope to be reliable enough but who knows?) .
If the correct way to carry out performance review is to check parts with known defects and compare the results, I believe that our process is ok.
My concern is related to a statistical data on real production with figures near to zero: is this ok for an Auditor?
I will let you know in few months.
thank you again and kind regards

 
 Reply 
 
Brian Frye
USA, Joined Mar 2013, 11

Brian Frye

USA,
Joined Mar 2013
11
22:53 Jan-23-2014
Re: Operator's performance review
In Reply to angelo at 20:56 Jan-20-2014 .

Angelo,
Sounds like you are performing work for Rolls Royce and trying to meet the performance review criteria in RRP 58005. This includes an annual review of personnel who accept production hardware. In our case we compile project information for that client only. In our system we can search by client or by technician. Basically you need to compile the amount of jobs, accepted parts, rejected parts and what the defects found were for each technician. If the defect rate is zero then it is zero not all manufacturers produce bad parts. In your data you want to also compare technicians and what defects they are finding. With the data you can possibly see if one technician is not effectively finding defects or certain defects and also show the customer common defects in their material. Hope this helps.

 
 Reply 
 
Angelo
Italy, Joined Nov 2012, 13

Angelo

Italy,
Joined Nov 2012
13
18:39 Jan-24-2014
Re: Operator's performance review
In Reply to Brian Frye at 22:53 Jan-23-2014 .

Hi Brian,

you've got it!
I' m currently doing more or less as you said and additionally every month I ask to my ispectors to process a part with known indications.
I will let you know after the next audit.
thank you so much

 
 Reply 
 
Jianjun Wu
Jianjun Wu
04:27 Jan-29-2014
Re: Operator's performance review
In Reply to Nigel Armstrong at 17:53 Jan-17-2014 .

Yes, the easiest way is to set a defective piece for the operator to verify the test result. However, flaw detection is one thing we should consider while we review the performance of the NDE guy, it is also very important to check the consistence to the procedure and test implementation because correct or satisfied test results could only be gained under correct operation and correct implementation upon specified code or standard.

 
 Reply 
 

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