As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: DURING CHECK OF THE EMERGENCY LIGHT TEST, FOUND FLIGHT ATTENDANTS PANEL EMERGENCY BUTTON WILL NOT HOLD ON POSITION. REPLACED FLIGHT ATTENDANTS PANEL AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 23-73-00.