Explainer
Logistics Support Analysis: From MIL-STD-1388 to S3000L
What It Is
The Analysis Behind the Manual
Logistic support analysis, LSA, is the work of deciding, while a product is still being designed, what it will demand once it is in service. Which failures should be expected, and how often. Which maintenance tasks follow, and at what level each is done. What parts, tools, test equipment, skills, and facilities each task needs. The answers shape the design itself, and they become the support system the product ships with.
The results are recorded as structured data, and that data is the source for much of what follows. DoD's current guidance, MIL-HDBK-502B, describes the analysis data as direct input to provisioning lists, personnel and training requirements, and technical manuals. In the S-Series, the official S3000L site calls LSA data the baseline for technical publications, material support, support equipment, and training.
The Lineage
From MIL-STD-1388 to Today
LSA was standardized by a pair of military standards in the 1980s, one for the process and one for the record. Both were canceled in the 1990s, and their roles passed to a handbook, a performance specification, and eventually an industry data standard. The S-Series offers a parallel, international route:
- MIL-STD-1388-1A (1983): the process
- Logistic Support Analysis as a defined set of tasks. Canceled on 30 May 1997; its supportability guidance moved into MIL-HDBK-502, a handbook rather than a requirement.
- MIL-STD-1388-2B (1991): the record
- The Logistic Support Analysis Record: data element definitions, field lengths, formats, and the relational tables that held the results. Canceled on 26 November 1996, when its requirements moved to MIL-PRF-49506, Logistics Management Information.
- MIL-PRF-49506 (1996): the bridge
- Logistics Management Information, the performance specification that carried the data requirements until 2011. Canceled on 31 March 2011, superseded by GEIA-STD-0007.
- GEIA-STD-0007 (2007, now Revision C): the data, in XML
- Logistics Product Data, first issued in 2007 and now published by SAE International, with Revision C dated 6 November 2019 and a companion handbook, GEIA-HB-0007. DoD formally adopted it in 2024 as the replacement for both 1388-2B and MIL-PRF-49506.
- MIL-HDBK-502B (2025): today's DoD guidance
- Retitled Product Support Analysis in its 2013 revision, the handbook is now at Revision B (18 April 2025). It is guidance only, cannot be cited as a contract requirement, and is written around SAE TA-STD-0017A, the industry analysis standard, with a cross-reference from the old 1388-1A activities to it.
- S3000L (Issue 3.0, 2025): the S-Series route
- The ASD/AIA specification for Logistic Support Analysis, part of the S-Series alongside S1000D for publications and S2000M for provisioning. Issue 3.0, dated December 2025, is current and free to download from the official S-Series site.
The Record
The LSAR and the LCN
MIL-STD-1388-2B defined the Logistic Support Analysis Record as a relational database: standard data element definitions, field lengths, and formats, with tables grouped by functional area from task analysis to provisioning. Everything in it was keyed to the LSA control number, the LCN, an 18-character code representing a functional or physical breakdown of the system. The standard allowed three ways to assign them:
- Classical
- A unique LCN for every application of a part-numbered item in the system, down to piece parts.
- Modified classical
- Piece parts below a component or assembly may share an LCN at that indenture level, which keeps large breakdowns manageable.
- Sequential
- For large systems: classical or modified assignment for the leading characters, with the final characters assigned in sequence.
The standard is long canceled, but its vocabulary is not. LCNs were tracked directly with provisioning documentation and convert readily to the provisioning list item sequence numbers that identify parts, and data built to 1388-2B carries that structure wherever it is migrated.
Publications
Where Technical Manuals Come In
Task analysis is the source of a manual's procedures; provisioning is the source of its parts lists. MIL-HDBK-502B names technical manuals, maintenance plans, maintenance allocation charts, and provisioning documentation among the documents task analysis data is meant to produce. In the S-Series, the same handoff runs from S3000L to S1000D for publications and S2000M for provisioning, which is the subject of our map of how the S-Series fits together.
The handoff is where programs lose consistency. When the analysis and the manuals are produced by different teams on different schedules, a task in the manual stops matching the task in the analysis, and a parts list stops matching provisioning. Neither error shows until a maintainer meets it. Treating LSA data as a source the publications are built from, rather than a reference they are checked against, is what keeps the two in step.
FAQ
Questions We Hear
What is logistics support analysis?
The study, carried out during design, of what a product will need in service: the failures to expect, the maintenance tasks and the level each is done at, and the parts, tools, skills, and facilities each task requires. Its results are recorded as structured data that feeds provisioning, training, and technical manuals. The standards spell it logistic support analysis; most searches add the s.
What is an LSAR?
The Logistic Support Analysis Record: the database of LSA results defined by MIL-STD-1388-2B, with standard data element definitions and relational tables grouped by functional area. The standard was canceled in 1996, and its role passed through MIL-PRF-49506 to GEIA-STD-0007, but the term survives wherever programs still hold data built to it.
What is an LCN in logistics?
An LSA control number: in MIL-STD-1388-2B, an 18-character code representing a functional or hardware breakdown of the system, typed F for functional or P for physical. Analysis records are keyed to it, and LCNs convert readily to the provisioning list item sequence numbers (PLISNs) used for parts.
What replaced MIL-STD-1388-2B?
MIL-PRF-49506 in 1996, which was itself superseded by GEIA-STD-0007, Logistics Product Data, in 2011. DoD's 2024 adoption notice for GEIA-STD-0007 describes it as the replacement for both. On the process side, MIL-STD-1388-1A's guidance moved to MIL-HDBK-502, now Revision B.
Is LSA the same as product support analysis?
Product support analysis is the current DoD name for the discipline. MIL-HDBK-502 was retitled from Acquisition Logistics to Product Support Analysis in 2013, and its 2025 revision cross-references the old MIL-STD-1388-1A activities to their successors. The S-Series keeps the older name in S3000L.
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Manuals That Match the Analysis?
We build technical publications in S1000D and the MIL-STD formats from the data upstream of them. If your manuals and your LSA data have drifted apart, tell us where.