−
552 - Data Erasing
−
553 - Change the Settings
−
720 - Installation
−
901 - Maintenance Practices
−
902 - Servicing
−
903 - Adjustment/Test
−
904 - Repair
−
920 - Removal/Installation.
9.7
Information Code Variant
YY-Y-YY-YY-YY-YYY-YYY
Y
-Y
The Information Code Variant (ICV) gives different data that is applicable to the same subject.
9.8
Item Location Code
YY-Y-YY-YY-YY-YYY-YYYY-
Y
The Item Location Code (ILC) indicates where the maintenance task is usually carried out or applicable. These are
identified as follows:
−
A - On the aircraft
−
B - On a primary assembly removed from the aircraft
−
C - On the bench
−
D - Applicable for codes A, B and C.
10
Standard Numbering System
YY-Y-
YY-YY-YY
-YYY-YYYY-Y
The Standard Numbering System (SNS) contains three groups of characters. The SNS allocates and provides
definitions for the system, subsystem, sub-subsystem and the unit or assembly.
System
YY-Y-
YY
-YY-YY-YYY-YYYY-Y
The system is identified by two numeric characters.
Subsystem / Sub-subsystem
YY-Y-YY-
YY
-YY-YYY-YYYY-Y
The first element is the subsystem.
The second element is the sub-subsystem.
Note
When the sub-subsystem is zero, for example YY-20-YY, the two digits “20” represent the subsystem as a whole.
Unit or Assembly
PC-12/47E AMM Doc No 02300, ISSUE 01 REVISION 26 MSN 545, 1001-1719,
1721-1999
12-B-AM-00-00-00-I
UNCLASSIFIED
Effectivity: All
12-B-00-00-00-00A-018A-A
UNCLASSIFIED
2021-12-04 Page 6