Validate MAC
Definition
Validation of the MAC is performed using the system’s intended personnel determining if the developed MAC adequately addresses all of the maintenance requirements. Validation is typically performed as a part of the Logistics Demonstration <NOTE: Hyperlink LogDemo article.>
General/Information/Narrative
The Maintenance Allocation Chart (MAC) is a list of equipment maintenance functions showing the maintenance level at which a maintenance task is authorized, as well as associated maintenance man-hours and other pertinent maintenance related information.
DODI 5000.2 requires that analysis, T&E results, or independent reviews confirm the adequacy of the proposed maintenance plan and programmed support resources to meet objectives for peacetime readiness and wartime employment. It also requires that the ability to support any system be demonstrated before the system is placed in the hands of the user. The Logistics Demonstration is conducted to confirm that support resources and tasks developed to sustain the system will function as intended. The data is supplemented by supportability related data obtained during developmental test and evaluation (DT&E) and OT&E to confirm the correct resources and tasks have been developed.
The validation process is managed by the materiel developer (MATDEV). Maximum use should be made of existing qualitative and quantitative data such as when the item is used by another service, industry, or country. In order to minimize cost and schedule risk, existing qualitative and quantitative demonstrations, evaluations, analyses, simulations and tests should be used to meet requirements.
Maintenance and troubleshooting tasks as the result of operations or fault simulation or insertion are to be accomplished by typical user personnel to meet the intent of MIL–HDBK–470.
Policies, Directives, Regulations, Laws
AR 700-127, Integrated Logistics Support
DoDI 5000.2, Operation of the Defense Acquisition System
Best Practices, Lessons Learned, Stories, Guides, Handbooks, Templates, Example Tools, Communities of Practice, LEC Tools
MIL–HDBK–470
MIL-STD-1388-1A, Logistic Support Analysis
PowerLOG stores maintenance information (tasks, man-hours, tools, etc…) and can produce a MAC using the LSA-004 report. The Task Analysis Summary (LSA-019) and Task Narrative (LSA-020) also support this action. 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/.
GEIA-STD-0007 Interface: C Entities, Task Analysis. The data Entities identified by a "C" in the first position of the entity name are required for documentation of task analysis and personnel and support requirement data. Information will be presented in sufficient detail to define task times, skills, tools, support equipment, facilities, and supply support requirements. The information contained in the C Entities is used to create draft technical publication maintenance and operator procedures and maintenance allocation charts.
Training Resources
Related Articles
Required for:
MAC validation is required for all acquisition.
Responsible Activity:
The materiel developer is responsible for validating the MAC.