Inclusion of probability of detection (POD) and probability of recognition (POR) of flaws in characterization of nondestructive inspection (NDI) reliability is considered. Possible measures for this characterization are discussed using inspection results of a test specimen population of 200 identical 4340 steel aircraft landing gear components rejected from service because of crack indications or exceedance of the safe service life. It is concluded that it is doubtful whether the discussed parameters give an appropriate measure of NDI reliability; it is recommended to establish minimum values for the POD and POR at a specified confidence level.
Quadrinomial Distribution for the Characterization of Nondestructive Inspection (NDI) Reliability
1984
17 pages
Report
No indication
English
Quality Control & Reliability , Inspection , Nondestructive tests , Polynomials , Probability distribution functions , Aircraft parts , Confidence limits , Eddy currents , Lugs , Magnetic materials , Penetrants , Reliability analysis , Struts , Ultrasonic flaw detection , Visual observation , Foreign technology
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