A local public school for students who are deaf relies on audio alerts over the school’s PA system to notify children of emergencies, according to a lawsuit filed by teachers and parents in Manhattan federal court.

The announcements at P.S. 347 The American Sign Language and English Lower School in Kips Bay — activated during fires and active shooter lockdowns — put students and staff who are deaf or hard of hearing at risk by failing to provide an effective system, plaintiffs allege.

“Despite years of requests for an appropriate emergency notification system by Plaintiff Parents, one has not been installed,” read the June 21 complaint.

“Plaintiff Parents are extremely worried about their children’s safety and their ability to react and reach safety in certain situations such as fires, intruders, weather and other emergencies.”

The reliance on a loudspeaker has already sparked fears and confusion during fire and intruder drills.

A local public school for students who are deaf relies on audio alerts over the school’s PA system to notify children of emergencies, according to a press release Tuesday about a lawsuit filed by teachers and parents in Manhattan federal court.

Veteran special education teacher Rita Fattorusso, who is deaf, has worked at P.S. 347 for more than a decade. During her tenure, Fattorusso has been alone with her 4-year-old students “several” times when emergency announcements were made that she could not hear, according to court documents.

In one incident, a colleague had to travel to her classroom to tell her the school was doing a lockdown drill. Another time, Fattorusso was in the bathroom when a lockdown was announced — and only learned of the emergency directive when she got to the hallway, she alleged.

She received the city’s top education award for her dual-language class in American Sign Language and English and school-wide pantry in 2019.

Nine teachers and other school staffers, as well as their union the United Federation of Teachers, shared similar experiences in the lawsuit, alongside four students at the school and their parents.

They point to new technology that would allow the school to implement color-coded visual alarms, such as red for fire or blue for intruders, or flash written warnings on smart boards.

A court date for an initial conference was set for Sept. 20 before Judge Katherine Polk Failla, according to online filings.

The city law department, Department of Education, and School Construction Authority did not immediately return a request for comment.