As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FLIGHT DIVERTED TO LHR ON ACCOUNT OF INTEGRATED FLIGHT STANDBY DISPLAY INOPERATIVE. EMERGENCY WAS DECLARED DUE OVERWEIGHT LANDING. MAINTENANCE PERFORMED INSPECTION AND REMOVED AND REPLACED THE ISFD INDICATOR IAW DMC-B787-A-34-24-01 00A-720A-A. ALL OPS AND IND NORMAL.