Based on Education Law Section 917, the answer would seem to be yes, a NY school could theoretically be held responsible for a student's injuries if they don't have a defibrilator (also known as an "AED"). Naturally (and importantly), this answer depends on the plaintiff's ability to prove that but for the school's failure to have the defibrilator, the injury would likely not have occurred.
Non-Compete, Trade Secret, Unfair Competition and School Negligence Lawyer