Value defining locomotive maintenance schedule.
Type
AN
Length
Max 2 / Min 2
Codes
<> FC
FRA Complete Maintenance (Originally Bi-annual)
<> FI
FRI Intermediate (Originally Annual)
<> FP
FRA Periodic (Usually Quarterly)
<> XX
Inspection/Maintenance scheduled by owner in addition to requirements.
The second position can be any alphanumeric character mutually defined by the sending and receiving road. ("XX" recommended if receiving road does not need to distinguish between various types of local maintenance schedules.)
