The trains were rerouted and service was delayed after reports of a person injured at Avenue M.
The woman was pronounced dead at the scene, officials said.
No criminality is suspected, officials said.
The repairs will affect subway stops uptown and in the Bronx on weeknights Monday through Friday.
A train with mechanical problems on the Manhattan Bridge disrupted subway service, the MTA said.
Nearly half of all subway lines were dirtier in 2013 than they were in 2011, according to the survey.
The woman snapped a photo of the man with her phone after he allegedly grabbed her.
A person was taken to Bellevue Hospital after being struck by a B train Thursday, officials said.
Slushy conditions, a track fire at Delancey St. and a power outage at Grand St. caused headaches.
Cecil Williams and his guide dog, Orlando, fell on the A train tracks at 125th Street, police said.
The MTA is doing overnight repairs in Washington Heights and Inwood next Monday through Friday.
The two kittens found wandering the subway tracks in August are ready to be adopted.
A man died as cops arrested him inside the Yankee Stadium train station Tuesday, cops said.
The kittens, named Arthur and August, were on the Church Avenue tracks for two hours.
The felines ran onto the tracks at Church Avenue, suspending service for about two hours.
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