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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Program

Milestone

A

B

C

Acquisition

Phase

Technology Development

System Development and Demonstration

Production and

Deployment

Operations and

Support

Reviews and

Audits

SRR

SDR(SFR)

PDR

CDR

FRR(IFR)

SVR

PCA

MECSIP TASK

TASK I  Preliminary Planning (5.1)

Program strategy

(5.1.1)

•  Initial definition of: design objectives, identification

of critical design failure modes, recommendations for materials selection

and characterization, development testing, and manufacturing process controls

•  Matrix defined with milestones consistent with MECSIP Master Plan and IMP/IMS

•  Matrix updated

•  Matrix updated

•  Matrix updated

•  Matrix updated

•  Matrix updated

Trade studies

(5.1.2)

•  Initial assessment complete

•  Trade studies and

Program impacts defined

•  Assessment revised to

consider evolution of final mechanical system requirements

•  Trade studies updated

•  Assessment updated to reflect knowledge gained from detailed design

•  Assessment updated to reflect knowledge gained from test

•  Assessment updated to reflect knowledge gained from flight test

Requirements development (5.1.3)

•  Concept for requirements management defined and coordinated

•  Specific approach and tool defined

•  Tool populated with initial requirements

•  Tool deployed and updated  with latest requirements

•  Tool updated with latest requirements

•  Tool updated with latest requirements

•  Tool updated with latest requirements

•  Tool updated with latest requirements

Preliminary integrity analysis (5.1.4)

•  Preliminary trade studies identified to determine the most cost-effective life requirements

•  Preliminary Integrity analysis for sizing, strength, durability, and damage tolerance estimates

•  Initial diagnostic capability estimates for critical items

•  Integrity analysis for sizing, strength, durability, and

damage tolerance analysis for preliminary design completed

•  Integrity analysis for sizing, strength, durability, and damage tolerance analysis for preliminary design update

•  Integrity analysis of detailed design completed

•  Diagnostic capability Completed for critical items

•  Integrity Analysis reviewed to ensure SDF criteria has been met