A book of First Class stamps <a href="http://www.doublezerosolutions.co.uk/sa-yar-career-d086.pdf#quietly">sa yar careers</a>  But it happened twice, Thursday night and Friday morning. In both cases, the agency says equipment known as a plate came into contact with the third rail. It was at a different spot each time, but the effect was the same: power was knocked out on the A, B, C and D lines from Columbus Circle to 125th Street. It also knocked out the subway signals.