Use of the Maintenance Allocation Chart.

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

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