in the field. The skill levels used to obtain the measurement
C-3. Explanation of Format.
times will approximate those found in typical TOE units.
Active repair time specified is the average aggregate time to
Purpose and use of the format areas follows and will be
restore an item (subassembly, assembly, component,
explained in the introductory portion of the MAC.
module, end item, or system) to a serviceable condition
under typical field operating conditions. This time includes
a. Column 1. Group Number. Column 1, lists group
preparation time, fault isolation/diagnostic time, and
numbers, the purpose of which is to identify components,
quality assurance/quality control time in addition to the
assemblies, subassemblies, and modules with the next
time required to perform specific maintenance functions
identified for the tasks authorized in the maintenance
allocation chart. This time may be the established time
b. Column 2. Functional Group. Column 2, lists the
standard developed through maintenance engineering
next higher assembly group and the item names of
analysis, or cart be derived from the calculation of a
components, assemblies, subassemblies, and modules within
statistically weighted time estimate incorporating the
the group for which maintenance is authorized.
optimistic (a), most likely (m), and pessimistic (b)
estimated for the work to be accomplished using the
c. Column 3. Maintenance Functions. Column 3, lists
the twelve maintenance functions defined in C-2 above.
Each maintenance function required for an item shall be
specified by the symbol among those listed in d below
which indicates the level responsible for the required
maintenance. Under this symbol there shall be listed an
appropriate work measurement time value determined as
This time will be expressed in man-hours and carried to one
indicated in e below.
decimal place (tenths of hours).
d. Use of Symbol The following symbols will be used:
f. Column 4. Tools and Equipment. This column will
C - Operator/crew
be used to specify, by code, those tools and test equipment
required to perform the designated function.
F - Direct support (intermediate)
H - General Support
D - Depot
A table, suitably coded and explained, listing
e. Work Measurement Time. The active repair time
the tool, test, and support equipment required
by the level to perform the maintenance
required to perform the maintenance function will be
functions will be included as a complement to
included directly below the symbol identifying the category
of maintenance. The manpower figures will be developed
under conditions (real or simulated) corresponding to those
g. Column 5. Remarks. Self-explanatory.
that would be considered normal for TOE units operating