As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD ZONAL DRYER FAN FAILS, LATCHED MAINTENANCE MESSAGE 21-71211. R & R FWD ZONAL DRYER IAW AMM 21-72-01-00A-720A.MESSAGE STILL PRESENT. PERFORMED CMCF GROUND TEST 21 HUMIDITY CONTROL SYSTEM, SYSTEM, FORWARD ZONAL DRYER AND HUMIDIFICATION SYSTEMS TEST PASSED AND MESSAGE WENT AWAY. SMELL STILL EXISTS IN THE CABIN. REF LP 9439349 FOR NEW WRITE UP ON BURNING SMELL. CLEARING LOGPAGE SINCE FAULT FOR FWD ZONAL DRYER FAN IS CLEARED.