As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BURNING SMELL IN FLIGHT DECK. PERFERMED NO GO ODI A220 ATA2172 AFTER T/S PER W/C 0550-2001 NO SUSPECTED CAUSE OF BURNING SMELL FOUND FURTHER T/S NEEDED (NE 316390) PER NO GO ODI PROGRAM PERFORMED EFIM SOL ID 1-8458 NO ODOR NOTICED(EK 781195) REPLACED #3 WIPC IAW A220 AMP 30-41-06 NO FAULTS ALL ODI CARDS C/W OK FOR SVC. (LP# 4180052)