FLEXIBLE REPEATER MANUFACTURE 137 



critically, as an additional precaution before the material was released 

 to the shop. 



INSPECTION RECORDS 



To eliminate, as much as possible, the human element in providing 

 assurance that all prescribed operations had been performed satisfac- 

 torily, inspected properly and the results recorded, means were estab- 

 lished to compile a complete history of the product concurrent with 

 manufacture. This was accomplished through the provision of permanent 

 data books of semilooseleaf design, which require a special machine for 

 removing or inserting pages. 



Each of these books covered a portion of the work involved in pro- 

 ducing a piece of apparatus and contained a sequential list of pertinent 

 operations and requirements prescribed in the manufacturing process 

 specifications. Space was provided, adjacent to the recorded information, 

 for both the operator and inspector to affix their initials and the data. 

 A reference page in the front of each book identified the initials with 

 the employees' names. All apparatus was serially numbered and the 

 data were identified accordingly. If a unit was rejected, that serial num- 

 ber was not reused. 



These data books, in addition to establishing a complete record of 

 manufacture, provided a definite psychological advantage in that people 

 were naturally more attentive to their work when required to sign for 

 responsibility. 



QUALITY ACCURACY 



As pointed out previously, every precaution was exercised in selecting 

 and training inspection personnel assigned to the project. However, it 

 was realized at the outset that human beings are not infallible and that 

 insurance, to the greatest degree possible, would have to be provided 

 against the probability of errors in observation and jugment. Quality 

 accuracy evaluation procedures were, therefore, established for deter- 

 mining the accuracy of each inspector's performance. 



Quality accuracy checking was performed by a staff of five Inspection 

 Representatives and in^'olved an examination of the work performed 

 by inspectors to determine how accurately it was inspected. Materials 

 which the inspector accepted and those which had been rejected were 

 both examined. 



VERIFICATION AND SUMMARY OF DATA 



As an added measure of assurance as to the integrity of the product, 

 procedures were established for verifying and summarizing the inspec- 

 tion records for each serially numbered component, up to an including 

 complete repeaters, 



