As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON APPROACH TO ORD, UNEXPECTED PRECIPITATION WAS ENCOUNTERD. DUE THE MEL 30-19 WHICH PROHIBITS THE AIRCRAFT FROM OPERATING IN PRECIPITATION, THE CREW DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT.-C/A-PERFORMED WIPER ARM PRESSURE ADJUSTMENT FO'S SIDE & OPERATIONAL CHECK OF WINDSHIELD WIPER FO SIDE .FOUND OPS CHECK GOOD.MEL ITEM RESTORED .PERFORMED OPERATIONAL CHECK OF FO'S WINDSHIELD WIPER SYS IAW EMB145 AMM 30-41-00.