Attch_0005_TROPO_PWS_Appendix_D_v2_MAC_Prep.pdf
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- Solicitation number
- W15P7T-18-R-0008
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This document contains a Maintenance Allocation Chart (MAC) preparation appendix for an AN/TRC-XXX Troposcatter System. The MAC is to be prepared per the statement of work and include all maintenance levels up to and including depot. It must be documented as an appendix to the system's lowest level maintenance manual. The MAC will incorporate a two-level maintenance structure and document repairable items to the lowest assembly. Non-repairable items will be noted in remarks against the next higher assembly. Items with multiple repair levels will include clarifying remarks. The MAC will follow a top-down breakdown sequence and include maintenance functions such as test, inspect, replace, repair, fault locate, service, overhaul, adjust and align. It will contain four sections: introduction, maintenance allocation chart, tools and test equipment requirements, and remarks to clarify the chart.
The related federal contract opportunity is for the potential 10 year production and sustainment of tactical Troposcatter Transmission Systems by the Army Contracting Command - Aberdeen Proving Ground on behalf of Program Executive Office for Command Control Communications-Tactical, Project Manager Tactical Network, and Product Manager Network Modernization. Comments on draft documents are invited from all organizations for increased awareness and potential feedback prior to soliciting proposals, though no solicitation currently exists. Input shall be directed to the named contracting officer and specialist.
RFP Attachment 0005 TROPO PWS Appendix D - MAC Prep
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UNCLASSIFIED
AN/TRC-XXX
Troposcatter System
Appendix D
Maintenance Allocation Chart (MAC) Prep
Instructions
13 June 2017
Prepared by:
Project Manager, Tactical Network
ATTN: SFAE-CCC-TN
Aberdeen Proving Grounds, MD 21005
DISTRIBUTION A. Approved for public release: distribution unlimited. Other request for this document shall be referred to PEO C3T/PM Tactical Network, 6010 Frankford St., Aberdeen Proving Grounds, MD 21005.
MAC PREPARATION
The contractor shall prepare a MAC per this SOW (a sample MAC can be provided upon request). The MAC shall include all maintenance levels up to and including depot and shall be documented as an appendix to the system’s lowest level maintenance manual. The MAC report shall incorporate a two-level maintenance structure as defined by the Government. The MAC shall document to the lowest repairable assembly within the end item. Non-repairable items are to be documented in a remark against the repair function of the next higher assembly (NHA).
All items that have repair functions assigned to multiple levels shall be supported by remarks that clarify the specific repair actions performed at each level (e.g., repair at organizational level is limited to the replacement of defective fuses and lamps). The MAC shall be structured in such a way that replacement of an item is considered the repair of its NHA.
CONFIGURATION END ITEMS
Configured systems may be comprised of nomenclatured components and/or end items that are covered by a separate MAC, RPSTL and Maintenance Narrative. The system MAC shall list these components and/or end items with a Functional Group Code and maintenance functions performed at organizational level with a remark against the repair function. This remark shall reference the appropriate equipment publications which contain the component’s respective
MAC.
MULTIPLE APPEARANCES
When an item appears in a system in multiple quantities with the same maintenance concept, the
Government shall allow reference to the first appearance. If the items are sequential in appearance, the items shall be grouped together under one Functional Group Code.
MAC CONTENT AND FORMAT
The MAC shall consist of the following four sections:
Section I - Introduction. This section shall be furnished to the contractor by the Government.
Section II - Maintenance Allocation Chart. The Functional Group Codes (FGC’s) (column 1) shall be numeric codes that identify a particular system, subsystem, component/assembly or part of the system. The entire system shall be identified as FGC 00. The first repairable part/assembly of the system shall be identified as FGC 01, and the repairable parts/assemblies of that item shall be identified as FGC 0101, 0102, etc… Functional Group Code assignment shall correspond to the top down breakdown sequence of the system/end item. The maintenance functions shall adhere to one of the following tasks: test, inspect, replace, repair, fault locate, service, overhaul, adjust, align. At a minimum, each entry in the MAC shall account for maintenance tasks of Remove, Replace, and Repair, but other actions may be included as necessary. The approximate time required to accomplish each task shall be listed under the appropriate maintenance level column.
Section III - Tools and Test Equipment Requirements. This section shall identify the comprehensive listing of all tools and test equipment required to perform the maintenance functions of section II. A numeric reference code shall be assigned to each entry so that it may be referenced in column 5 of Section II against the corresponding maintenance function. At a minimum, each tool and test equipment entry (i.e., reference code) shall identify the maintenance level(s) where its used, common name, nomenclature or model/part number and National Stock
Number (if applicable).
Section IV - Remarks. This section shall contain remarks that are critical in clarifying Section II of the MAC. All maintenance functions which are limited must be clarified by a remark. All items for which discard has been economically justified should be cited as a remark in the repair of the NHA. An alpha-character reference code shall be assigned to each remark so that it may be referenced in column 6 of Section II against the corresponding maintenance function.
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