As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JFK - FLT 73 - AT DEPARTURE, A DENT APPROXIMATELY 19 INCHES LONG BY 2 TO 5 INCHES WIDE WAS FOUND ON THE LEFT HORIZONTAL STABILIZER LEADING EDGE. DETERMINED THAT LAVATORY WATER FROM A LAVATORY CAUSED DAMAGE. REPLACED STABILIZER LEADING EDGE. EA 97-3800-01 WHICH INSTALLS A WASTE DRAIN VALVE WILL BE EMBODIED ON THE AIRCRAFT. AIRCRAFT RETURNED TO SERVICE. (X)