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MIL-HDBK-472 Procedures
Although a maintainability prediction can be based on generic maintenance procedures, it is generally based on one of the three procedures presented in MIL-HDBK-472, Maintainability Prediction. The following table describes these procedures. For information about ordering this standard, see Ordering Reliability Standards.
MIL-HDBK-472
Description
Procedure 2
Predicts corrective, preventative, and active maintainability measures of electronic and electromechanical systems in naval environments. Metrics analyzed include corrective and active maintenance times.
Procedure 5A
Predicts maintainability measures of avionics, ground, and shipboard electronics at the organizational, intermediate, and depot levels of maintenance in early design stages. Procedure 5A can also be applied to any application environment and type of equipment, including mechanical equipment. This procedure, which uses estimated design data to predict maintainability parameters, is more structured than Procedure 5B. It segregates maintainability data by both a maintenance philosophy and maintainability groups.
Procedure 5B
Predicts maintainability measures of avionics, ground, and shipboard electronics at the organizational, intermediate, and depot levels of maintenance in later design stages. Procedure 5B can also be applied to any application environment and type of equipment, including mechanical equipment. This procedure uses actual detailed design data to predict maintainability procedures. While the calculations for Procedure 5B are similar to those for Procedure 5A, they are much more simple and less structured.