DECISION ORDER
ORDERED that the order is reversed, on the law, with costs, the petition is granted, the cross petition is denied, and so much of the arbitration award as reduced the penalty imposed from dismissal to demotion is vacated.
An employee of the petitioner, New York City Transit Authority (hereinafter the NYCTA), failed to follow the proper procedure in applying the brakes on the subway train he was operating. It is uncontroverted that this failure led directly to an accident and derailment. The NYCTA dismissed the employee, and the employee filed a grievance which was heard by the Tripartite Arbitration Board (hereinafter the Board). The Board denied the grievance but reduced the penalty imposed from dismissal to demotion. The Supreme Court denied the petition brought by the NYCTA to vacate that portion of the award which modified the penalty on the ground, inter alia, that to do so was against public policy.
An arbitration award may not be vacated unless it is violative of a strong public policy, is irrational, or clearly exceeds a specific limitation on an arbitrator's power (see, Matter of Town of Callicon [Civil Serv. Empls. Assn.], 70 N.Y.2d 907, 909; Matter of City of Newburgh v. P.B.A. of Newburgh, New York, Inc., 272 A.D.2d 326). Here, the employee, who had two prior operational suspensions, operated the subway train in a manner which clearly jeopardized the safety of co-workers as well as the public. The NYCTA has an important statutory duty to operate the transit system for the safety of the public (see, Public Authorities Law § 1204; Matter of New York City Tr. Auth. v. Transport Workers Union, 243 A.D.2d 567; Matter of New York City Tr. Auth. v. Transport Workers Union, 220 A.D.2d 749). Requiring the NYCTA to reinstate an employee who has been found to be a threat to public safety is contrary to public policy and to the important statutory duty of the NYCTA to operate the transit system safely (see, Matter of New York City Tr. Auth. v. Transport Workers Union, supra). Therefore, the Supreme Court erred in denying the petition to vacate so much of the arbitration award as reduced the penalty imposed from dismissal to demotion and granting the cross petition to confirm it.