[Code of Federal Regulations]
[Title 49, Volume 4]
[Revised as of October 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 49CFR230.31]

[Page 341-342]
 
                        TITLE 49--TRANSPORTATION
 
       CHAPTER II--FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF 
                             TRANSPORTATION
 
PART 230--STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS--Table of Contents
 
                  Subpart B--Boilers and Appurtenances
 
Sec. 230.31  Flues to be removed.

    (a) Inspection of the boiler interior. During the 1472 service day 
inspection, the steam locomotive owner and/or operator shall remove all 
flues of steam locomotive boilers in service, except as

[[Page 342]]

provided in paragraph (b) of this section, for the purpose of inspecting 
the entire interior of the boiler and its bracing. After removing the 
flues, the steam locomotive owner and/or operator shall enter the boiler 
to remove scale from the interior and thoroughly clean and inspect it.
    (b) NDE testing. If the boiler can be thoroughly cleaned and 
inspected without removing the superheater flues, and it can be shown 
through appropriate NDE testing methods that they are safe and suitable 
for service, their removal may not be required at this time. Their 
removal may be required, however, if the FRA inspector, or the steam 
locomotive owner and/or operator, considers it necessary due to 
identifiable safety concerns.