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NTSB Safety Recommendations R-12-23 and -24





National Transportation Safety Board

Washington, DC 20594


May 10, 2012




NTSB Safety Recommendations R-12-23 and -24




The NTSB makes the following safety recommendations to the

Association of American Railroads:


Revise Association of American Railroads Standard S-580 to

provide protection for the occupants of isolated operating

cabs in the event of a collision, and make the revision

applicable to all locomotives, including those newly

constructed, rebuilt, refurbished, and overhauled. (R-12-23)


Develop a standard that specifies the use of suitable crash-

protected memory modules for all new and existing

installations of on-board video and audio recorders. The

memory modules should meet or exceed the survivability

criteria specified in Title 49 Code of Federal

Regulations 229.135 Appendix D, Table 2. (R-12-24)


The NTSB reclassifies the following previously issued

recommendation to the Association of American Railroads:


Through appropriate and expeditious means, such as issuing

and posting advisory bulletins on your website, use the

occurrences of five recent rear-end collisions of freight

trains-(1) Red Oak, Iowa, on April 17, 2011, (2) Low Moor,

Virginia, on May 21, 2011, (3) Mineral Springs, North

Carolina, on May 24, 2011, (4) DeWitt, New York, on July 6,

2011, and (5) DeKalb, Indiana, on August 19, 2011-to urge

your members to undertake a review of their operations to

identify the potential for similar occurrences and to take

appropriate mitigating actions. (R-11-8)








The complete recommendation letter is available on the Web

at the URL indicated above.


The letter is in the Portable Document Format (PDF) and can

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An archive of recommendation letters is available at


Electronic versions of letters may or may not include

enclosures; however, related publications, accident

briefs, and aviation accident synopses may be found

on the NTSB website.




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