As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURN TO SEAT LIGHT INOPERATIVE AT AFT CABIN LT AFT LAV. RTS LIGHT ASSY MISSING. NEEDS P/N 110-4391. PARTS ORDERED TO GATE 87. IF UNABLE TO FIX, ITEM SHOULD BE CHANGED TO MEL 3320C AND MAKE LAV USEABLE. REPLACED MISSING RTS SIGN FACE PLATE AND RELAMPED. RETURN TO SEAT LT AND ATT CALL FUNCTIONS CHECK GOOD. RETURNED LAV TO SERVICE.