Woman dies climbing to her apartment during NYC power outage

An ailing 73-year-old woman died while climbing the stairs to her 19th-floor apartment during a massive power outage at her Co-Op City complex in the Bronx on Friday, a law enforcement source said.

The woman, whose name was not released, had reached the 18th floor of her De Kruif Place building and had just one more story to go when her oxygen tank apparently gave out and she collapsed sometime around 3 p.m., the source told The Post.

She was found in the stairwell between the 18th and 19th floors. Her cause of death was under investigation, and it was possible she died from the fall, the source said.

Thousands of Co-Op City residents were left without power, water and heat into early Saturday after a basement transformer caught fire Friday morning.

“The damage caused by the transformer fire is extensive and will take a while to repair,” the Co-Op City Department of Public Safety tweeted at 6:30 p.m.

“If there are no further incidents, we estimate that electric, water and heat services will be restored sometime late tonight or early this morning,” the tweet said.

Community rooms elsewhere in the massive complex were open as warming and cell-phone-charging centers, the officials said.

“The power is slowly being restored!” the officials tweeted at 11 p.m.