As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FA'S SMELLED A BURNING SMELL (PAPER, WOOD) CA SMELLED SULFUR SMELL SKYDROL SMELL MULTIPLE TIMES ON GROUND IN THE AIR. OPENED DEFERRAL OF LEFT PACK #1 IAW MEL 21-51-1B. CAT B PLACARD INSTALLED MM02 UPDATED MOC NOTIEFIED #98628. OK FOR SVC. MAINTANCE PROCEDURES COMPLIED WITH. MDC B1 007373 MANIFOLD TEMP SENSOR 1 BY LEFT ACSC.R&RLH MIX MANIFOLD TEMP SENSOR IAW AMM 21-22-08 OPS CHECK GOOD MM02