Safety Advisories

Safety concerns involving Model B1 relays, manufactured by General Railway Signal (GRS), between the years 1960 and 1985, and their potential to stick and remain in the energized position. ALSTOM Signaling,Inc., which has acquired GRS, estimates that app

  • 11
  • May
  • 2000
SA NUMBER: 2000-01
SUBJECT: Signal and Train Control
KEYWORDS: Signal and Train Control; GRS ;� relay failure; B1 relay