As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI OUT, RUDDER PRESSURE AND MASTER CAUTION LIGHTS ILLUMINATED. MAINTENANCE REMOVED AND REPLACED NR 1 RUDDER PRESSURE SWITCH, OPS CHECKED GOOD. RETURNED A/C TO SERVICE. ON SUBSEQUENT REPOSITIONING FLIGHT (NON-REVENUE) LIGHTS ILLUMINATED AGAIN. MAINTENANCE CHANGED BOTH PRESSURE SWITCHES AND DISPATCHED THE A/C UNDER MEL 2706.