As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDIS 644 21-51 2139501 28FEB21 TRI ASSGN #1 PACK FAIL WITH BURNING SMELL MEL 28FEB21 10:56 TRI C05904 21-13-1 1 AIR CON PACK ELECTRO/MECH N600-N649 SMOKE REPORT HAS BEEN FILLED OUT, SDR SUPPLEMENTAL INFO WILL FOLLOW, CURRENTLY ON THE MEL