Police say Caroline Kumah, 38, left her three children home alone in their apartment on East 164th Street in the Melrose section.
The girl fell out the window after pushing out the AC unit.
She was rushed to Lincoln Hospital and is expected to be okay.
The other children are 1 and 9 years old. me alone.
Police believe the kids were home alone for about two hours before the incident happened just after 2 p.m.
Kumah was reportedly out shopping.
