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TM 55-4940-353-13&P
c. A  maintenance  functional  assigned  to  a
Performs all maintenance functions authorized to be
done at AVUM. Repair of equipment for return to user
maintenance level will automatically be authorized to be
will  emphasize  support  or  operational  readiness
performed at any higher maintenance level
requirements.
Authorized  maintenance  includes
replacement and repair of modules/components and end
d. A  maintenance  function  that  cannot  be
items which can be accomplished efficiently with
performed at the assigned level of maintenance for any
available skills, tools, and equipment Establishes the
reason  may  be  evacuated  to  the  next  higher
Direct Exchange (DX) program for AVUM units be
maintenance organization. Higher maintenance levels
repairing selected items for return to stock when such
will perform the maintenance functions of lower
repairs cannot be accomplished at the AVUM level
maintenance levels when required or directed by the
Inspects,  troubleshoots,  tests,  diagnoses,  repairs,
appropriate commander.
adjusts,
calibrates,
and
aligns
system
modules/components Module/component disassembly
e. The assignment of a maintenance function will
and repair will support the DX program and will normally
not be construed as authorization to carry the associated
be  limited  to  tasks  requiring  cleaning  and  the
repair parts in stock. Authority to requisition, stock, or
replacement of seals, fittings and items of common
otherwise secure necessary repair parts will be as
hardware.  Unserviceable reparable modules and end
specified in the repair parts and special tools list
items which are beyond the capability of AVIM to repair
appendix.
will be evacuated to Depot Maintenance. This level will
perform special inspections which exceed AVUM
f.  Normally there will be no deviation from the
capability.
Provides quick response maintenance
assigned level of maintenance. In cases of operational
support, on-the job training, and technical assistance
necessity,  maintenance  functions  assigned  to  a
through the use of mobile maintenance contact teams.
maintenance level may, on a one-time basis and at the
Maintains  authorized  operational  readiness  float.
request of the lower maintenance level, be specifically
Provides collections and classification services of
authorized by the maintenance officer of the level of
serviceable/unserviceable
material,
Operates
a
maintenance to which the function is assigned.  The
cannibalization activity in accordance with AR 75050
special tools, equipment, etc.  required by the lower
(The  aircraft  maintenance  company  within  the
level of maintenance to perform this function will be
maintenance battalion of a division will perform AVIM
furnished by the maintenance level to which the function
functions consistent with air mobility requirements and
is assigned. This transfer of a maintenance function to
conservation of personnel and equipment resources
a lower maintenance level does not relieve the higher
Additional intermediate maintenance support will be
maintenance level of the responsibility of the function
provided by the supporting non-divisional AVIM unit).
The higher level of maintenance will provide technical
supervision and inspection of the function being
B-2.
Use of the Maintenance Allocation Chart.
performed at the lower level.
g. Organizational through depot maintenance of
a. The MAC assigns maintenance functions to the
the US Army Electronics Command equipment will be
lowest level of maintenance based on past experience
performed  by  designated  US  Army  Electronics
and the following consideration:
Command personnel.
(1) Skills available
h. Changes to the MAC will be based on
continuing evaluation and analysis by responsible
(2) Time required.
technical personnel and on reports received from field
activities.
(3) Tools and test equipment required and/or
available
B-3.
Definitions.
b. Only the lowest level of maintenance authorized
a. Inspect. To determine serviceability of an item
to perform a maintenance function is indicated. If the
by comparing its physical, mechanical and electrical
lowest level of maintenance cannot perform all tasks of
characteristics with established standards.
any single maintenance function (e.g., test, repair), then
the higher maintenance level(s) than can accomplish
additional tasks will also be indicated.
b. Test.
To verify serviceability and detect
incipient failure by measuring the mechanical or
electrical characteristics of an item and comparing those
characteristics with prescribed standards.
B-2

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