As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEAT 4H AFT EEL LIGHT INOPERATIVE. NEED MORE TIME TO FURTHER TROUBLESHOOT, NO POWER TO HARNESS. TROUBLESHOT TO BROKEN WIRE AT FLAT CONNECTOR AISLE LT L300 STA 888, WL 283 RBL 40 PIN ONE WIRE NR W1222-100-20. NEED FLAT PIN CONNECTOR REPAIR. INSTALLED NEW PIN ON WIRE W1222-100-20. EEL LIGHTING AT SEAT 4H CHECKS OK.