Following is a listing of the more frequently used terms involving Interchange Rules and Repairs....

B

Bad Order Car:
An interchange freight car which is in need of mechanical
attention and/or repairs as defined in the AAR Interchange
Rules or by any governmental regulatory requirement.

Billing Repair Card:
A detailed record of repairs performed in accordance
with AAR Rule 83.

C

Car Kind Symbols:
Symbols used on Billing Repair Card to identify kind of
car repaired. See AAR Rule 83.

Car Owner:
The company or individual car owner mark stenciled on an
interchange freight car.

Car Part Code:
Alpha code used to define the area where repairs were
performed on a car. See AAR Rule 83.

Condemnable:
Any condition warranting inspection, repair, or testing of a freight
car as specified in any section of the AAR Interchange Rules.

Contract Shop:
A repair facility designated by car owner to perform repairs
to interchange freight cars.

Correct Repairs:
Materialand repairs specified in Section B of any
AAR Interchange rule.

D

Defect Card:
A document accepting responsibility for damage or
loss to an interchange freight car as outlined in AAR Rule 95.

E

Early Warning:
A directive issued by the AAR for interchange
freight cars having mechanical or potential safety problems.

Expedite Track:
A repair location not meeting the definition of a repair track
(i.e. mobile repair vehicles and tracks performing repairs
not requiring full repair equipment).

F

Field Manual:
The AAR Interchange Rules which specify the inspection, repair,
and handling requirements of interchange freight cars.

Foreign Repair:
Any repair performed to an interchange freight car by a
company other than thecar owner (or car owner's agent
in the case of contract shop repairs).

Free/Unrestricted Interchange Service:
A freight car placed in the North American interchange system
recognized as meeting all interchange requirements.
Also refered to as interchange service.

G

Government Regulatory Requirement:
Mechanical requirements placed on freight cars by
various governmental agencies.

H

Home Shop:
A repair facility designated by the car owner.

J

Jacking:
Raising of the car body by any means necessary in order
to safely accomplish repairs
(see Rule 75, Job Code 4458).

Job Code:
A 4 digit number that identifies the inspection, repair, and / or
testing performed, or the car component applied or removed.

L

Labor Rate:
Consists of direct labor, indirect labor, fringe benefits and
non-labor overhead costs associated with car repair.
Refer to AAR Office Manual
Rule 111.5. for further detail.

M

Maintenance Advisory:
An informationalnotice issued by the AAR covering interchange
freight cars having minor mechanical defects
or potential problems.

Mechanical Advisory:
An informational notice issued by the AAR covering
interchange freight cars identified as unacceptable to
an individual railroad for mechanical reasons.

N

Net Applied:
A Job Code that includes all labor and material necessary to
correctly complete the repair.

Non-conformance:
The deficiency which causes the associated product or
service not to meet the applicable

O

Obsolete:
Components no longer acceptable for interchange
service, as set forth in these rules.

Office Manual:
The AAR Interchange Rules which specify labor and material
pricing, sale, acquisition, and settlement
for interchange freight cars.

Original Record of Repairs:
The support documentation andfoundation of the
Billing Repair Card prepared at the car.
See AAR Rule 83.

Owner's Responsibility:
Inspection, defects, damage or loss assigned
to the car owner in these Rules

P

Private Car Owner:
Any Non-Railroad owner of an interchange freight car.

Q

Qualifier:
Alpha or numeric code used to define the area
where repairs were performed on a car or the
manufactured / remanufactured
component applied or removed from the car.

R

R&R:
Remove and replace same part.

RR&R:
Remove, repair, and replace same part.

R&R or R:
Remove, replace same part, or remove old
part and apply new part.

Reconditioned:
A freight car component which has been remanufactured in
accordance with applicable AAR standards
or specifications.

Repair Date:
The date repair(s) are completed.

Repair Shop (Facility)/Repair Track:
Shop or repair track is a location properly equipped,
primarily and regularly used for repair of freight
cars which must be done incompliance with
FRA Railroad Freight Car Safety Standards,
Safety Appliance and Power Brake Laws,
And AAR Interchange Rules.

Responsibility Code:
Numerical code used on the Billing Repair Card to
designate responsibility for repairs made to a car.
See AAR Rule 83.

S

Safety Appliance:
Any component covered by the U.S. Department
of Transportation Title 49, Part 231, of the Code
of Federal Regulations.

Service Metal (wheels):
Usable metal remaining on a wheel above the condemning limit.
See AAR Office Manual Rule 41.

Shopping:
The removal of a car from service for repair, service or inspection.

Submerged:
When any portion of a component has been under water.

W

Wheel Set:
Includes two wheel plates, two bearings, and one axle.

Why Made Code:
Numeric code used to designate the reason repairs
or services were made or performed.

Wreck Repair:
A repair performed as a result of unfair usage damage sustained
in a derailment, sideswipe,collision, etc.
See AAR Rule 95.

Wrong Repair:
An improper or impermissible repair reported
through an invalid applied/removed Job Code couplet.