MIL-DTL-81928C(AS)
3.1.5 IPB.
3.1.5.1 Relationship between the IPB and the WP concept. The IPB is an integral part of
the technical data to be prepared in support of maintenance tasks. Therefore, it is essential that
the intent of the WP concept is followed in the development of the supporting IPB. Emphasis
shall be placed on the accessibility of data, comprehensibility of supporting illustrations, and the
use of the information presented. The IPB data shall be prepared in accordance with the IPB
technical content specification (MIL-DTL-15014 or MIL-DTL-81929, as applicable). The IPB
figure(s) shall be an integral part of the maintenance element.
3.1.5.2 IPB figures. The format of IPB figures shall be compatible with all reproduction
media. This should be accomplished through control of legibility of the Group Assembly Parts
List (GAPL), proper line art techniques in the preparation of supporting illustrations, and
coordinated GAPL entries with illustrations (see MIL-DTL-81927 and NAVAIR 00-25-700).
3.1.6 Common requirements. Documentation prepared in accordance with this specification
shall contain instructions for organizational, intermediate, and/or depot level maintenance.
Mandatory compliance standard shop practices and techniques given in general maintenance
engineering series manuals shall not be duplicated. Appropriate references shall be made to other
manuals when required. Prepared documentation shall follow the approved maintenance plan and
level of repair analysis for the end item covered. Only authorized support equipment, at the
appropriate level of maintenance, shall be included in the maintenance instructions. Sound
engineering principles, performance data, and reliability data shall be used in the preparation of
maintenance procedures.
3.1.6.1 Development and presentation. Technical data prepared in WP format is specifically
designed to respond to functional work tasks. These manuals shall include Introduction,
Operation, Description and Principles of Operation, Testing and Troubleshooting, and
Maintenance Instructions with Illustrated Parts Breakdown WPs (see MIL-DTL-81927).
3.1.6.2 Layout and arrangement of maintenance information. Manuals shall be prepared as
Maintenance Instructions with IPBs. The criteria for determining technical manual requirements
shall be based on the approved Maintenance Plan (MP) or the Level of Repair Analysis (LORA).
The analysis of coverage requirements and related task analysis (see NAVAIR 00-25-700) shall
determine the depth of coverage, its complexity, information volume (bulk) and environmental
usability. The development of the Numerical Index of Part Numbers, Numerical Index of
Reference Designations, and the technical content of the IPB shall be in accordance with
MIL-DTL-81927. The development of other technical content shall be as specified herein.
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