As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHV-DURING C CHECK THE LEFT EMERGENCY EXIT FAILED THE WARNING MESSAGE OPERATIONAL CHECK. MAINTENANCE CLEANED DIRT AND DEBRIS FROM THE EMERGENCY EXIT MICRO SWITCH. MAINTENANCE PERFORMED THE OPERATIONAL CHECK IAW EMB 145 AMM 52-21-00-700-801-A AGAIN. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.