No Roosevelt Island Late Night F Train Service To Manhattan Monday To Friday This Week - No Roosevelt Island F Trains From Manhattan This Weekend

According to the MTA:

F Coney Island-bound trains run via the M from Roosevelt Av to 47-50 Sts

Late Nights, 11:45 PM to 5 AM, Mon to Fri, Feb 4 - 8

No Coney Island-bound F service at 21 St-Queensbridge, Roosevelt Island, Lexington Av/63 St and 57 St.

Also, according to the MTA:

F Jamaica-bound trains run via the M from 47-50 Sts to Roosevelt Av

Weekend, 9:45 PM Fri to 5 AM Mon, Feb 8 - 11

Trains run express from Queens Plaza to Roosevelt Av.

No Jamaica-bound service at 57 St, Lexington Av/63 St, Roosevelt Island and 21 St-Queensbridge.

and:

Long-term construction projects impact train service between Queens and Manhattan
Multiple projects require the rerouting of trains while work is done, which include:

• Switch replacement and the modernization of the signal system at Roosevelt Av, 71 Av and Union Tpke
• Radio communication upgrade at Parsons Blvd
• Replacement of tracks at 36 St and Lexington/53 St stations
• Connection of the Second Avenue subway to the Lexington Av-63 St station