Primary definition
Complete diagnostic repair, modification, and overhaul of COMSEC equipment, including repair of defective assemblies by piece part replacement. See limited maintenance. Source: NSA/CSS Manual Number 3-16 (COMSEC)
Also known asfull maintenance · depot maintenance · FDM · full/depot maintenance · COMSEC depot maintenance
1 sources cited4 related termsReviewed Aug 9, 2026
— Committee on National Security Systems Glossary CNSSI 4009-2015View source
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CNSSGC
Complete diagnostic repair, modification, and overhaul of COMSEC equipment, including repair of defective assemblies by piece part replacement. See limited maintenance. Source: NSA/CSS Manual Number 3-16 (COMSEC)
Committee on National Security Systems Glossary CNSSI 4009-2015 · 2024
Cite this term
Permanent URL · stable across revisions
Election Security Glossary. (2026). Full/depot Maintenance (comsec). In Election Security Glossary. Retrieved August 20, 2026, from https://electionsecurityglossary.com/glossary/full-depot-maintenance-comsec
Sources
1 cited · last checked Aug 9, 2026
01
Committee on National Security Systems Glossary CNSSI 4009-2015
Committee on National Security Systems Glossary CNSSI 4009-2015
Single-source
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