As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENENT REPORTS THAT THE ORANGE AND BLUE FUNCTIONS OF THE AFT FA VISUAL ALERTING SYSTEM ( ON CEILING) ARE REVERSED. GROUNDED - YES. AFT GALLEY EXIT SIGN W/ CALL LIGHTS FOUND W/ LOWER LENS INSTALLED BACKWARDS, REVERSING ORANGE AND BLUE FUNCTIONS. INSTALLED LENS PROPERLLY AND ALL OPS CHECKS GOOD. REF AMM 33-51-01-960-801.