What was found
DRAG CONTROL (SPEEDBRAKES & SPOILERS): SPOILER WAS COMMANDED OPEN, BUT THEY SLAMMED CLOSED AND JOLTED THE AIRCRAFT. VISUAL INSPECTION SHOWED THE SPOILERS FLUTTERING WHILE IN FLIGHT. MULTIPLE SPOILER MESSAGES OCCURRED. CORRECTIVE ACTION: VISUALY CHECKED THE SPOILER SYSTEM AND FOUND NO OBVIOUS DEFECTS, LNTEROGATED CMC &SENT FILES TO MCC AND CRC, PER EMBRAER CRC WE PERFORMED FIM TASK 27-66-00-810-805-A AND SERVICE LETTER SL-505-27-0002 REVISION 2. USING DIGITAL PROTRACTO WE NOTED OUTBOARD SPOILERS HAD BACKLASH OF 2 DEGREES. NOTED PLAY WAS FROM THE PRESSED IN BEARINGS ON THE OUTBOARD SPOILER BELLCRANKS. REPLACED LH AND RH BELLCRANKS IAW MM 27-65·02 AND OPS CHECKS GOOD AT THIS TIME LAW MM 27-00-00.