MIL-DTL-81929C(AS)
when a component board or single item contains a high number of detail parts and cannot be
adequately covered with multiple sheet or multiple view illustrations. The format of an IPB
foldout illustration shall be as follows:
a. Complex foldout illustration. A complex foldout illustration should be developed as an
end item illustration with reference to following detailed views of various lengths
prepared as combined maintenance/IPB illustration(s). Detail views may also reference
additional detail views. Callouts may be assigned to maintenance significant items as
required to support the maintenance actions in accordance with MIL-DTL-81927.
Maintenance related text and short tabular data may also be used. The primary
consideration should be clarity of presentation.
b. Single item foldout illustration. Foldout illustrations prepared in support of component
boards shall be developed in the same manner as partial/full page illustrations prepared
for component boards (see 3.4.1.9), except for the additional length. The legend shall
be placed adjacent to the artwork as part of the foldout illustration.
3.4.3 Reference to detailed views of subassemblies. If it is impractical to illustrate the
detailed parts of a subassembly in the illustration, the subassembly shall be shown in the
illustration and reference to a separate detail view(s) shall be included. Detail view(s) shall be
prepared in accordance with 3.4.1.4. If it is impractical to illustrate the detailed parts of a
subassembly in a detail view because of the complexity of the item in question, a reference to a
separate subassembly figure (IPB WP) or WP (IPB part of a WP) shall be placed in the
"DESCRIPTION" column of the GAPL, following the item nomenclature. A separate exploded
view of the subassembly shall be prepared in accordance with 3.4.1.2.
3.4.4 Reference designations. Illustrations that depict electrical components shall include
reference designation after the index number. If an orthographic view is prepared, the reference
designation may be placed within the view of the part, if space permits.
3.5 Group assembly parts list. All parts provisioned for the applicable maintenance level
support of the article shall be listed on GAPL pages. The columns of tabular data shall appear
from the left margin to the right margin as follows:
3.5.1 "INDEX NO." column. The index numbers that appear in the associated illustration
shall appear in this column in numerical sequence beginning with the number 1 (see 3.4.1.8).
3.5.2 "PART NUMBER" column. Part numbers assigned to the parts listed or other specific
requirements detailed herein shall appear in this column.
a. Items without part numbers (see 3.3.3a).
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