As of 5:20 PM, there is no Roosevelt Island F Train service from Manhattan due to mechanical problems at the 21 Street/Queensbridge station

earlier this afternoon.
#ServAdv: b/d, #E, #F, #M & #R trains delayed and rerouted due to a train with mechanical problems at 21 St. See http://t.co/vhZQ2kZ2vb
NYCT Subway Service (@NYCTSubway) October 30, 2014

UPDATE 6:25 PM:
#ServAdv: Following an earlier incident at 21 St-Queensbridge, #E, #F, #M and #R train service has resumed with residual delays.
NYCT Subway Service (@NYCTSubway) October 30, 2014
UPDATE 9;45 PM – According to CBS New York the cause of the F train service disruption today was:
An enormous drill bit plowed right into a subway tunnel and grazed an occupied F Train in Queens on Thursday.
The train had just pulled out of the 21st Street station in Long Island City, Queens, around 11:45 a.m., when the drill bit plowed into the occupied subway car, the Metropolitan Transportation Authority confirmed to CBS2.
The drilling was part of the East Side Access project to bring the Long Island Rail Road trains to Grand Central Terminal, officials said. A worker employed by a contractor Griffin Dewatering New England Inc. was using the drill above ground near the station, and was supposed to be expanding a construction well, officials said….
Click here for the full story.
