The MTA has posted a service alert regarding the 4 & 5 trains. The service alert reads:
Due to signal problems at the 138th Street-3rd Avenue Station, and trains are running with delays in both directions at this time.
Two notes about this service alert. I was watching Metro Traffic & Weather & they said the delays were approximately 10 minutes. Lastly I would assume the MTA meant the 138th St.-Grand Concourse station since that is where the 4 & 5 start. I can’t imagine why supposed delays at the 6 train station would hurt the 4 & 5.