Reliability Case History of an Airborne Air Data Computer |
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| Authors: | Murata Tadashi |
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| Affiliation: | Aircraft Equipment Div./Shimadzu Seisakusho Ltd./Nishinokyo-Kuwabaracho, Nakagyo-ku/Kyoto 604, JAPAN; |
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| Abstract: | The life of an airborne Air Data computer and some of its components have been observed in the field and in the laboratory. This paper treats 3 aspects of the reliability. Part 1 shows the relationship of predicted to actual MTBF and explains some seasonal fluctuations in actual MTBF. Monthly and yearly fluctuations are also explored. Part 2 shows some effects of workmanship-in-repair on reliability growth. The repair procedure was changed and the reliability gradually improved over a long period of time. Part 3 treats one of the components, a wirewound potentiometer, in some detail. A failure analysis and an improvement program are described. |
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