As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BWI - FLT 1257 - ON APPROACH TO DCA, ANTI-SKID INOP LIGHT CAME ON. FLIGHT DIVERTED TO BWI AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE REPLACED THE RIGHT MLG STRUT HARNESS AND THE LEFT INBOARD ANTI-SKID TRANSDUCER. OPS CHECK GOOD. REFERENCE USAASB96113.