As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EQUIP COOLING FWD FAN 2 FWD EE COOLING SUPPLY FAN 2 FAILURE. OR FWD EE COOLING SUPPLY FAN 2 FAILURE. SUSPECT #2 FWD E&E SUPPLY FAN AT FAULT. REMOVED #2 FWD E&E COOLING SUPPLY FAN IAW DMC-B787-A-21-27-12-00A-520A-A AND FOUND FAN SPINNING FREELY BUT MAKING A SLIGHT BALLBEARING RATTLING SOUND WHEN SPUN BY HAND. INSTALLED NEW FWD E&E COOLING SUPPLY FAN IAW DMC-BDMC-B787-A-05-51-99-99A-282A-A WITH NO DEFECTS FOUND. NO FURTHER MAINT ACTION REQUIRED.