MIL-STD-1629-RevA - Barringer and Associates, Inc.

MIL-STD-1629Aa.b.C9d.Category I - Catastrophic - A failure which maycause death or weapon system loss (i.e., aircraft,tank, missile, ship, etc.)Category II - Critical - A failure which may causesevere injury, major property damage, or majorsystem damage which will result in mission loss.Category III - Marginal - A failure which may causeminor injury, minor property damage, or minor systemdamage which will result in delay or loss of availabilityor mission degradation.Category IV - Minor - A failure not serious enoughto cause injury, property damage$ or system damage,but which will result in unscheduled maintenance orrepair.-’14.5 FMECA Report. The results of the FMEA and other relatedanalyses shall be documented in a report that identifies the level ofanalysis, summarizes the results, documents the data sources and techniquesused in performing the analysis, and includes the system definitionnarrative, resultant analysis data, and worksheets. The worksheetsshall be organized to first display the highest indenture level ofanalysis and then proceed down through decreasing indenture levels ofthe system. The ground rules, analysis assumptions, and block diagramsshall be included, as applicable, for each indenture level analyzed.Interim reports shall be available at each design review to providecomparisons of alternative designs and to highlight the Category I andCategory II failure modes, the potential single failure points, and theproposed design corrections. The final report shall reflect the finaldesign and provide identification of the Category I and Category IIfailure modes and the single failure points which could not be eliminatedfrom che design.4.5.1 Sunmary. The report shall contain a summary which providesthe contractor’s conclusions and recommendations based upon the analysis.Contractor interpretation and comments concerning the analysis and theinitiated or recommended actions for the elimination or reduction offailure risks shall be included. A design evaluation summary of majorproblems detected during the analysis sh:)llbe provided in the finalreport. A list of items omitted from the F?U?A shall be included withrationale for each item’s exclusion.4.5.2 Reliability critical item lists. Reliability criticalitem lists extracted from the FMEA shall be included in the summary.The information provided for each item listed s}lall include t})e f~)llowing:a. Item identification and FMEA cross-reference.—