MIL-STD-1798 Mechanical Equipment And Subsystems Integrity ProgramThe purpose of this standard is to describe the general process to achieve and maintain the physical and functional integrity of the mechanical elements of aircraft systems. The goal of this integrity program is to achieve the desired level of safety and aircraft availability at the most economic cost across the life cycle of the weapon system. This standard allows the process to be tailored in a competitive environment to meet specific equipment, subsystem, and/or system requirements. The Mechanical Equipment and Subsystems Integrity Program MECSIP is implemented in the planning process and continued until retirement of the system.

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MIL-STD-1798C

5.3.4.4             Control laws, schedules, architecture, and power management

(flight control)...................................................................................................37

5.3.5                Electromagnetic effects and lightning...............................................................38

5.3.6                Software performance and testing requirements..............................................38

5.3.7                Abnormal operation design margin ..................................................................38

5.3.8                Reliability and maintainability ...........................................................................38

5.3.8.1             Electrical/optical cable maintainability ..............................................................38

5.3.8.2             Ground handling ..............................................................................................38

5.3.8.3             De-rating/up-rating...........................................................................................38

5.3.8.4             Equipment Prognostic Health Monitoring (PHM) systems ................................39

5.3.8.5             Obtain Original Equipment Manufacturer (OEM) data ......................................39

5.3.9                Flight Manual ...................................................................................................39

5.3.10              Create Work Unit Code (WUC) Manual............................................................39

5.3.11              Identify Technical Needs (Task III)...................................................................39

5.3.12              Update MECSIP Master Plan...........................................................................39

5.4                   (Task IV) Component Development and Systems Functional Tests.................40

5.4.1                Component and rig test descriptions................................................................40

5.4.2                Testing risk mitigation ......................................................................................40

5.4.3                Hardware and systems rig testing ....................................................................40

5.4.3.1             Subsystem performance ..................................................................................40

5.4.3.2             Dry rig..............................................................................................................40

5.4.3.3             Wet rig .............................................................................................................40

5.4.3.4             Mechanical systems.........................................................................................41

5.4.4                Hardware components.....................................................................................41

5.4.4.1             Component development.................................................................................41

5.4.4.2             Abnormal operation (design margin) ................................................................41

5.4.5                Reliability growth demonstration ......................................................................41

5.4.6                Oil interruption and depletion ...........................................................................41

5.4.7                Component fit checks ......................................................................................41

5.4.8                Component qualification...................................................................................42

5.4.9                Vibration and dynamic response......................................................................42

5.4.10              Strength testing................................................................................................42

5.4.11              Durability testing ..............................................................................................42

5.4.12              Vibration/dynamics/acoustics tests ..................................................................43

5.4.13              Damage tolerance tests ...................................................................................43

5.4.14              Thermal, environment, and loads survey .........................................................43

5.4.15              Overspeed/overtemperature tests of rotating parts ..........................................43

5.4.16              Maintainability/reparability demonstrations.......................................................44

5.4.17              Acceptance Test Procedures ...........................................................................44

5.4.18              Evaluation and interpretation of ground test results..........................................44

5.4.19              Evaluation and interpretation of flight test results .............................................44

5.4.20              Integrated test plan ..........................................................................................44

5.4.21              Final integrity analysis......................................................................................44

5.4.22              Maintenance planning and task development ..................................................45

5.4.23              Airworthiness certification ................................................................................45

5.4.24              Identify technical needs (Task IV) ....................................................................45

5.4.25              Update MECSIP documents (including the MECSIP Master Plan)...................45

5.5                   (Task V, Sustainment) Force Management......................................................45

5.5.1                Subtask 1:  Data gathering and task planning..................................................48

5.5.1.1             Establish a Reliability Analyses Team (RAT) ...................................................48

5.5.1.2             Establish the sustainment philosophy (e.g., preventative maintenance)...........49

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