TM 1-1680-320-13&P
HIGH PERFORMANCE RESCUE HOIST ASSEMBLY
MAINTENANCE ALLOCATION CHART (MAC)
INTRODUCTION
Aviation Maintenance Allocation Chart
This MAC designates overall authority and responsibility for the performance of maintenance functions on the
identified end item or component. The application of the maintenance of the maintenance functions to the end
item or component shall be consistent with the capacities and capabilities of the designated maintenance level
which are shown on the MAC as:
Field includes two columns, "O" which corresponds to Aviation
Maintenance Company (AMC) and "F" which corresponds to Aviation Support Battalion (ASB)
Sustainment includes two columns, "L" which corresponds to Theater Aviation Sustainment
Maintenance Group (TASMG) and other organizations that have National Maintenance Program
certification and "D" which corresponds to Depot.
DEPOT - Corresponds to a "D" Code in the RPSTL.
The maintenance to be performed below depot and in the field is described as follows:
Aviation Unit Maintenance (AMC)
1. Aviation Maintenance company (AMC). The primary purpose of the aviation maintenance company is to
support the momentum of offensive operations. Composition of the AMC will be based on type of operations
being supported, nature of the battlefield, and the need for flexibility. AMCs will provide forward positioning of
essential maintenance repair parts and supplies, maximum use of support teams, use of airlift/air drops for
resupply, for maintenance that does not interfere with the tactical plans and operations. AMCs are agile,
mobile, and well equipped. They will carry limited stockpiles of demand supported, essential parts, and
supplies. The AMC performs battle damage assessment and repair (BDAR) and unit level repairs on Aviation
Life Support Systems (ALSS). The AMC performs production control, quality control, and Maintenance
Management/Maintenance Test Pilot functions. AMCs will rig aircraft for recovery operations. The AMC
manages the battalion maintenance program and operates a central tool room. The AMC conducts forward
arming and refueling. AMCs will be comprised of 3 to 4 modular platoons, which are configured to maintain
unit level operational readiness and aircraft availability:
Headquarters Platoon Establishes standard operating procedures, receives, and processes work
requests, schedules maintenance, maintains status of aircraft, coordinates inspections and test flights
and return to repaired aircraft, enforces quality standards, responsible for safety. Also, obtains,
stores, and issues Classes II, III, IV, and IX, prescribed load list shop stock and authorized stockage
list items.
Airframe Repair Platoon Tailored to battalion it supports. Performs scheduled and unscheduled
maintenance, troubleshoots faulty components, and removes and replaces aircraft components.
Provides mission capable aircraft to support flight company operations.
Component Repair Platoon Performs scheduled and unscheduled maintenance, troubleshoots
faulty components, and removes and replaces aircraft components. Performs BDAR and manages
Class IX spare/shop stock. This platoon uses Shop Equipment Contact Maintenance (SECM) trucks
which are multi-capable and self-contained and are used to perform on-site maintenance using
enhanced power tools, test, measurement, and diagnostic equipment, welding and cutting equipment,
and an air compressor. The SECM truck is highly mobile.
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