As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FA'S REPORT UNUSUAL SMELL IN CABIN WHILE AT CRUISE. NO SMELL IN COCKPIT PERFORMED COM SUPPLEMENTRY 9.1.1 AND SELECTED PACK 2 OFF. FA'S REPORT SMELL WENT AWAY. ( PACKS A320 WITH MOD 31283/MP P7125 (FWC H2-F1 STND) AND WITH MOD. 30626/MP K6443 (ENHANCED ECS) - OR A321 WITH MOD 157080/MP K17996 AND WITH MOD 31283/MP P7125 (FWC H2-F1 SND) AND WITH MOD 30626/MP K6443 (ENHANCED ECS) )--