TM 55-4920-431-13
(2) Aviation Intermediate Maintenance (AVIM). AVIM provides mobile, responsive "One-Stop"
maintenance support (Maintenance functions which are not conducive to sustaining air mobility will be
assigned to depot maintenance). Performs all maintenance functions authorized to be done at AVUM.
Repair of equipment for return to user will emphasize support or operational readiness requirements.
Authorized maintenance includes replacement and repair of modules/components and end items which
can) be accomplished efficiently with available skills, tools, and equipment. Establishes the Direct
Exchange (DX) program for AVUM units by repairing selected items for return to stock when such
repairs cannot be accomplished at the AVUM level. Inspects, troubleshoots, tests, diagnoses, repairs,
adjusts, calibrates, and aligns system modules/components. Module/component disassembly and repair
will support the DX program and will normally be limited to tasks requiring cleaning and the
replacement of seals, fittings and items of common hardware. Unserviceable reparable
modules/components and end items which are beyond the capability of AVIM to repair will be
evacuated to Depot Maintenance. This level will perform special inspections which exceed AVUM
capability. Provides quick response maintenance support, on-the-job training, and technical assistance
through the use of mobile maintenance contact teams. Maintains authorized operational readiness float.
Provides collections and classification services for serviceable/unserviceable material. Operates a
cannibalization activity in accordance with AR 750-50. (The aircraft maintenance company within the
maintenance battalion of a division will perform AVIM functions consistent with air mobility
requirements and conservation of personnel and equipment resources. Additional intermediate
maintenance support will be provided by the supporting non-divisional AVIM unit).
B-2. USE OF THE MAINTENANCE ALLOCATION CHART.
a. The MAC assigns maintenance functions to the lowest level of maintenance based on past experience and
the following consideration:
(1) Skills available.
(2) Time required
(3) Tools and test equipment required and/or available.
b. Only the lowest level of maintenance authorized to perform a maintenance function is indicated. If the
lowest level of maintenance cannot perform all tasks of any single maintenance function (e.g., test, repair), then
the higher maintenance level(s) that can accomplish additional tasks will also be indicated.
c. A maintenance function assigned to a maintenance level will automatically be authorized to be performed at
any higher maintenance level.
d. A maintenance function that cannot be performed at the assigned level of maintenance for any reason may
be evacuated to the next higher maintenance organization. Higher maintenance levels will perform the
maintenance functions of lower maintenance levels when required or directed by the appropriate commander.
e. The assignment of a maintenance function will not be construed as authorization to carry the associated
repair parts in stock. Authority to requisition, stock or otherwise secure necessary repair parts will be as
specified in the repair parts and special tools list appendix.
f. Normally there will be no deviation from the assigned level of maintenance. In cases of operational
necessity, maintenance functions assigned to a maintenance level may, on a one-time basis and at the request of
the lower maintenance level, be specifically authorized by the maintenance officer of the level of maintenance to
which the function is assigned. The special tools, equipment, etc. required by the lower level of maintenance to
perform this function will be furnished by the maintenance level to which the function is assigned. This transfer
of a maintenance function to a lower maintenance level does not relieve the higher maintenance level of the
responsibility of the function. The higher level of maintenance will provide technical supervision and inspection
of the function being performed at the lower level.
g. Organizational through depot maintenance of the U.S. Army Electronics Command equipment will be
performed by designated U.S. Army Electronics Command personnel.
B-2
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