As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SFO - CARGO DOOR LIGHT ON TAKEOFF ROLL. TAKEOFF ABORTED. MAINTENANCE DEFERRED CARGO DOOR LIGHT PER MEL 52-70-1. OPENED DMI 47777. AIRCRAFT RETURNED TO SERVICE. MAINTENANCE SUBSEQUENTLY CLEANED DEFERRAL BY ADJUSTING CARGO DOOR AFT MICROSWITCH STRIKER PLATE. OPERATIONAL CHECK SATISFACTORY. (M)