In January 2003, the Waterloo & City was closed for over three weeks for safety checks after a major derailment on the Central line, which required all 1992 tube stock trains to be modified.
I januar 2003 var Waterloo & City lukket i over tre uger for sikkerhedskontrol, efter en større afsporing på Central line, der krævede at alt 1992-tubemateriel skulle modificeres.