As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEAT MOUNTED EMERGENCY LIGHTS FOUND INOP AT ROWS 30-35. REMOVED AND REPLACED WIRELESS EMERGECY LIGHTING SYSTEM CONTROL UNIT REF AMM DMC-B787-A-33-51-07-01A-720A-A, SOFTWARE UPLOADED IAW ASCM. OPS CHECK GOOD, GROUND TEST OF EMERGENCY LIGHTING SYSTEM PASSED.