TM 55-1560-307-13&P
(b) Less Than Company Size Aviation
Units. Aviation elements organic to brigade, group,
battalion headquarters, and detachment size units are
normally small and have less than ten aircraft assigned.
Maintenance tasks performed by these units will be those
which can be accomplished by the aircraft crew chief or
assigned aircraft repairman and will normally be limited
preventive maintenance, inspections, servicing, spot
painting, stop drilling, application of nonstress patches,
minor adjustments, module/component fault diagnosis,
and
replacement
of
selected
modules/components.
Repair functions will normally be accomplished by the
supporting AVIM unit.
(2) AVIM provides mobile, responsive "one-
stop" maintenance support. (Maintenance functions
which are not conducive to sustaining air mobility will be
assigned to depot maintenance). AVIM may perform 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. AVIM established 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. The AVIM level inspects,
troubleshoots, performs diagnostic tests, repairs, adjust,
calibrates
and
alines
aircraft
system
modules/components. AVIM units will have capability to
determine
the
serviceability
of
specified
modules/components removed prior to the expiration of
the
time
between
overhaul
(TBO)
or
finite
life.
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. Airframe repair and
fabrication of parts will be limited to those maintenance
tasks which can be performed with available tools and
test
equipment.
Unserviceable
repairable
modules/components and end items which are beyond the
capability of AVIM to repair will be evacuated to Depot
Maintenance. AVIM will perform aircraft weight and
balance inspections and other special inspections which
exceed AVUM capability. Provides quick response
maintenance support, including aircraft recovery and air
evacuation, on-the-job training, and technical assistance
through the use of mobile maintenance contact teams.
Maintains authorized operational readiness float aircraft.
Provides
collection
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 nondivisional AVIM unit.)
B-2. USE OF THE MAINTENANCE ALLOCATION
CHART (SECTION II).
a. The maintenance allocation chart assigns
maintenance
functions
to
the
lowest
category
of
maintenance based on past experience and the following
considerations:
(1) Skills available.
(2) Work time required.
(3) Tools and test equipment required and/or
available.
b. Only the lowest category of maintenance
authorized
to
perform
a
maintenance
function
is
indicated. If the lowest maintenance category 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.
B-2
