Final MAC
Definition
The final list of equipment maintenance functions showing the maintenance level at which maintenance task is authorized, as well as associated maintenance man-hours and other pertinent information.
General/Information/Narrative
The MAC reflects the system maintenance concept. It is a list of equipment maintenance functions showing the maintenance level for the performance of maintenance functions on an identified end item or component. Thus, the MAC identifies and authorizes specific maintenance functions (e.g., inspect, test, replace, repair, etc.) for each maintenance level to perform. The MAC is arranged in functional group code sequence or in top-down, breakdown sequence in the logical order of disassembly following the Repair Parts and Special Tools List (RPSTL) order of assembly/subassembly listings. Also, the MAC establishes a time standard for each authorized maintenance function as a functional group entry, lists the tools and test equipment required for each maintenance function to the various maintenance levels, and contains supplemental instructions and explanatory notes for a particular maintenance function.
Policies, Directives, Regulations, Laws
MIL-STD-40051-2(TM)
GEIA-STD-0007
Army Regulation 25-30
Army Regulation 750-l
Army Regulation 700-127
Army Regulation 750-2
MIL-STD-40051
Best Practices, Lessons Learned, Stories, Guides, Handbooks, Templates, Example Tools, Communities of Practice, LEC Tools
MIL-HDBK-1222
A MAC can be directly produced from powerLOG using the LSA-004. The LSA-023 and LSA-024 reports also summarize maintenance information. These reports are tailored to each branch of service. The LSA-004 report is for Army systems, while LSA-023 covers Air Force MAC requirements, and LSA-024 is used by the Navy and Marine Corps. The Task Analysis Summary (LSA-019) and Task Narrative (LSA-020) also support for the MAC. PowerLOG is a logistics data management system developed to support the development, integration, and review of logistic product information throughout the acquisition life cycle. PowerLOG implements the Logistics Support Analysis Record (LSAR) requirements defined in MIL-STD-1388-2B as well as Logistics Product Data (LPD) standards defined by GEIA-STD-0007. PowerLOG also supports legacy data standards such as MIL-STD-1552 (PMR). PowerLOG is available free to all Government agencies and their contractors and can be obtained by visiting: https://www.logsa.army.mil/lec/powerlog/.
The Computerized Optimization Model for Predicting and Analyzing Support Structures (COMPASS), is a system Level of Repair Analysis (LORA) modeling tool. LORA is the analytical methodology used to determine the maintenance repair levels where items should be removed and replaced; and ultimately repaired or discarded. COMPASS estimates the cost to repair or discard items at various maintenance levels, with contractor facilities included as a separate level. COMPASS optimizes both the maintenance and support to achieve your target operational availability (Ao). COMPASS can consider up to four levels of organic maintenance (supports Two-Level Maintenance studies), supply support, and contractor support. You can also use COMPASS output data as a source for developing the MAC and SMR codes. COMPASS is a free tool available to both DoD and contractors at: https://www.logsa.army.mil/lec/compass/.
Training Resources
Related Articles
Required for:
The MAC is required for all systems with planned organic maintenance actions.
Responsible Activity:
Although overall responsibility for MAC preparation and validation reside with the PM in coordination with the CBTDEV, the contractor is responsible for developing MAC requirements based on the maintenance concept and plan for a particular system or piece of equipment and through the supportability analyses (SA) process such as conducting a level of repair analysis (LORA). All new or revised MACs will require approval of HQDA (DALO-SMP-S).