What was found
AIRCRAFT ON MAINTENANCE. PRE-INPUT WASH COMPLETED FUNCTIONS ON FLYING CONTROLS WITH 1-3 AND 2-3 REVERSABLE MOTOR PUMPS RUNNING. GROUND CREW REPORTED SMOKE SPARKS AND FLAMES IN THE RT MLG BAY. ACFT SYSTEMS WERE IMMEDIATELY SHUT DOWN. ON INSP, THE WIRING TO THE NR 2 AUX PUMP HAD BURNED THROUGH AT THE HYD PUMP PLUG. THE CIRCUIT BREAKERS TO THE HYD PUMP WERE PULLED. THEY HAD NOT TRIPPED WITH THE CABLE DAMAGE. CONTINENTAL A/L, HOUSTON ARE CARRYING OUT AN INVESTIGATION ON THE CABLE LOOM.