As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1282, RIC-BOS. EMERGENCY DECLARED. CABIN ODOR #2 PACKSTRUCK MATCH SMELL IN CABIN DURING DESCENT AT FL 180. SMELL DISSIPATED AFTER DEPRESSURIZATION; REMOVED AND REPLACED #2 ACM IAW AMM 21-51-55. OP CHECKS GOOD. MX4 UPDATED. PLACARD REMOVED AND MCC NOTIFIED.