What was found
RAMP REPORTED SPARKS UNDER FLOORBOARD AT CENTER CARGO DOOR CUTOUT, WHEN LATERAL ROLLERS ACTUATED. ROLLERS WERE INOPERATIVE. FOUND ROLLER C/B B1-588 TRIPPED. RESET C/B, ACTUATED ROLLERS. C/B TRIPS, NOTICEABLE SPARKS UNDER ROLLER AREA. REMOVED PLUGS P1-993 & P1-992, RESET ALL C/BS. C/BS REMAINED SET. INSPECTED WIRING FROM R5-992 & R5-993 TO C/BS & ALL GOOD. INSPECTED STRUCTURE & SUSPECT WIRING CHAFED STRUCTURE. NO DAMAGE. R & R 24 DAMAGED WIRES & PERFORMED CONTINUITY CHECK OF WIRES, CHECKED GOOD IAW SWPM 20-10-01, 20-20-00, 20-31-00, & WDM 25-52-05, 25-52-06. OPS CHECKED CARGO LOADING SYS, CHECKED NORMAL IAW MM 25-57-00-5, 25-57-10-5, & 25-57-07-5.