As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE SMELL BRIEFLY IN CABIN AND COCKPIT. BISIBLE SMOKE IN CABIN BRIEFLY.-C/A-TS PER FIM 21-00-00-810-801-A FOUND ACM #2 SEIZED. DEFERED #2 ACM SEIZED IAW E145 MEL 21-28. NO M PROCEDUREL. REMOVED AND REPLACED #2 PACK AIR CYCLE MACHINE IAW 21-51-03. OPS CHECK GOOD IAW 21-51-00. MEL 21-28 IS RESTORED