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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Safety Advisory 2025-01; Proper Configuration of Grand Master 4000 and 4000A Switch Machines to Prevent Unintended Switch Movement

Document Series:
Safety Advisories
Author:
  • Federal Railroad Administration
Safety Advisory Number
2025-01
Subject:
Signal and Train Control
Keywords:
Safety Advisory, switching, Grand Master
Document
Safety_Advisory_2025-01.pdf (210.94 KB)

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Effective Date: Friday, April 25, 2025
Issued Date: Friday, April 25, 2025