As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED. EMERGENCY LIGHT TEST SWITCH HAS RED LINE INDICATION WHEN SELECTED OFF AT 1L DOOR FLIGHT ATTENDANT SWITCH PANEL (SUSPECT DEFECTIVE SWITCH). REPLACED 1L FLIGHT ATTENDANT PANEL EMERGENCY LIGHT SWITCH PER AMM 33-22-06.