Explanation Of Detailed Parts List Entries; Fig # & Item Column; Part # Column; Nomenclature Column - ACR Electronics COBHAM B406-4 Abbreviated Component Maintenance Manual

TASK 25-62-03-990-803

3. Explanation of Detailed Parts List Entries

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A. Fig # & Item Column
(1) The first number at the top of the column is the figure number of the corresponding
illustration.
(2) The right hand number is the item number in the associated figure.
(3) A dash (–) in front of an item means the part is not illustrated.
(4) Alpha-variants A through Z (except I and O) are assigned to item numbers, when necessary to
identify added parts, alternate parts, and service bulletin modified parts.
SUBTASK 25-62-03-990-002
B.

Part # Column

(1) This column contains the manufacturer's part number for each part.
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C.

Nomenclature Column

(1) This column contains descriptive nomenclature for each part, service bulletin numbers
affecting the part, and obsolete part numbers.
(2) The indenture system used in the "Nomenclature" column indicates the relationship of one
part to another, as follows:
1 2 3
End Item or Major Assembly
ATTACHING PARTS
Attaching Parts for End Item or Major Assembly
***
. Detail Parts for End Item or Major Assembly
. Subassemblies
ATTACHING PARTS
. Attaching Parts for Subassemblies
***
. . Detail Parts for Subassemblies
ATTACHING PARTS
. . Attaching Parts for Detail Parts
***
COBHAM AVIONICS WULFSBERG ELECTRONICS
ABBREVIATED COMPONENT MAINTENANCE MANUAL
B406-4 (453-5004)
25-62-03
Page 81 of 86
APR 06/10