Use of the Maintenance Allocation Chart.

TM 55-1730-226-13

to preventive maintenance, inspections, s e r v i c i n g , spot painting, stop drilling,

minor adjustments, module/component fault diagnosis and replacement of selected

modules/components. Repair functions will normally be accomplished by the sup-

porting AVIM unit.

(2) Aviation Intermediate Maintenance (AVIM). AVIM provides mobile, respon-

sive "One Stop" maintenance support. ( M a i n t e n a n c e functions which are not con-

d u c i v e to sustaining air mobility will be assigned to depot maintenance). Per-

forms all maintenance functions authorized to be done at AVUM. Repair of equipment

f o r return to user will emphasize support or operational readiness requirements.

Authorized maintenance includes replacement and repair of modules/components and

e n d items which can be accomplished efficiently with available skills, tools, and

equipment. Establishes the Direct Exchange (DX) program for AVUM units be repair-

ing selected items for return to stock when such repairs cannot be accomplished

at the AVUM level. I n s p e c t s , troubleshoots, tests, diagnoses, repairs, adjusts,

c a l i b r a t e s , and aligns system modules/components. Module/component disassembly

and repair will support the DX program and will not normally be limited to tasks

r e q u i r i n g 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

q u i c k response maintenance support, on-the-job training, and technical assistance

through the use of mobile maintenance contact teams. Maintains authorized oper-

a t i o n a l readiness float. P r o v i d e s collections and classification services for

s e r v i c e a b l e / u n s e r v i c e a b l e material. O p e r a t e s a cannibalization activity in ac-

cordance 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. A d d i t i o n a l

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

f u n c t i o n is indicated. If the lowest level of maintenance cannot perform all

t a s k s of any single maintenance function (e.g., test, repair), then the higher

m a i n t e n a n c e 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 organ-

i z a t i o n . 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 author-

i z a t i o n to carry the associated repair parts in stock. A u t h o r i t y to requisition,

s t o c k , or otherwise secure necessary repair parts will be as specified in the

r e p a i r parts and special tools list appendix.

B-2