Section I. INTRODUCTION
This appendix provides a summary of the maintenance
operations covered in the equipment literature for
Direct support maintenance
Headset-Microphone 19LB-87. It authorizes categories
General support maintenance
of maintenance for specific maintenance functions on
repairable items and components and the tools and
equipment required to perform each function. This
d. Tools and Equipment.
appendix may be used as an aid in planning
appearing in this column refer to specific tools and
equipment which are identified by these numbers in
Explanation of Format for Maintenance
e. Remarks. Self-explanatory.
Explanation of Format for Tool and Test
correspond to the reference designation prefix assigned
in accordance with ASA Y32.16, Electrical and
The columns in the tool and test equipment
Electronics Reference Designations. They indicate the
requirements chart are as follows:
relation of listed items to the next higher assembly.
a. Tools and Equipment. The numbers in this
b. Component Assembly Nomenclature. This
column coincide with the numbers used in the tools and
column lists the item names of component units,
equipment column of the MAC. The numbers indicate
assemblies, subassemblies, and modules on which
the applicable tool for the maintenance function.
maintenance is authorized.
b. Maintenance Category. The codes in this
c. Maintenance Function.
column indicate the maintenance category normally
indicates the maintenance category at which
allocated the facility.
performance of the specific maintenance function is
c. Nomenclature. This column lists tools, test,
authorized. Authorization to perform a function at any
category also includes authorization to perform that
and maintenance equipment required to perform the
function at higher categories. The codes used represent
the various maintenance categories as follows:
d. Federal Stock Number. This column lists
the Federal stock number.
e. Tool Number. Not used.