January 14, 1981 Allen G. Schwartz, Corporation Counsel ( Milton Weinberg of counsel), for defendant. Donald J. Feldman for plaintiff. IRVING S. ARONIN, J. In this action to recover on a third-party judgment, defendant and plaintiff respectively move and cross-move for summary judgment. The third-party judgment against the New York City Health and Hospitals Corporation (hereinafter Hospitals Corporation) was rendered in a personal injury action brought in the Supreme Court, Kings County, bearing