As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FA REPORTED SMOKE. SHORTLY THERE AFTER ""R PACK AUTO FAIL"" CAUTION MESS AGE POSTED. SMOKE THEN DISSIPATED CAUTION MESSAGE DISAPPEARED DEFERRED R PACK INOP PER MEL 25-511A. CONTACTED MOC 96183 PLACARD INST ALLED AND MMO2 UPDATED....REMOVED AND REPLACED RIGHT ACM IAW CRJ 900 A MM 21-51-08 OPS CHECK GOOD DDL CLEARED PLACARD REMOVED MOC#96164