As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED. 30 MINUTES AFTER TAKEOFF AT FL 380, GOT INCREASING ELECTRICAL SMELL. LASTED 2 MINUTES THEN WENT AWAY. ODOR IN COCKPIT ONLY. MAINTENANCE FOUND GROUND WIRE DISCONNECTED FROM GROUND STUD ON P11 OVERHEAD PANEL, LEFT HAND SIDE METAL FRAME. RE-ATTACHED GROUND WIRE PER AMM SWPM 20-20-00. ACCOMPLISHED SIC 05-96-70 ALL SYSTEMS AND LIGHTS NORMAL, NO ODOR NOTED.