As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED ON DEPARTURE ROLL AT APPROXIMATELY 60 KNOTS, THE MASTER CAUTION, AMBER OVERHEAD ON SIX PACK, AND RIGHT FORWARD OVERWING AND RIGHT AFT OVERWING LIGHTS ILLUMINATED. TAKE OFF ABORTED AND SPEED NEVER ABOVE 75 KNOTS. FOUND CANNON PLUG D407009 LOOSE AT JUNCTION BOX J24 AND RESECURED IT. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED, PER FIMM 52-20-00.