3
Auxiliary Codes
CR3B-FS
A-5
February 2011
CR3B-HS
A-5
March 2011
Auxiliary Code Breakdown
The auxiliary code is the first two characters in the serial number. The first character
indicates the year. Years progress or regress in alphabetical order. The series runs from
"A" through "V" and the letters "I" and "O" are skipped. The second character indicates
significant part changes within a year. Base is "5" and this number advances for each
change.
Note About Ordering Parts
Most assemblies cannot be ordered as complete units; parts in the assemblies generally
must be ordered separately.
CF3B-FS
A-5
January 2011
CF3B-HS
A-5 TBD
