As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MUSTY SMELL REPORTED IN THE AFT GALLEY BY FA'S AFTER TURNING GALLEY HEATER ON. ODOR DISSIPATED ABOUT 15-20 MINUTES AFTER TURNING HEATER BACK OFF. C/W NO GO ODI. ODOR IS ISOLATED TO AFT GALLEY HEATER. R/R AFT GALLEY HEATER IAW A220 AMP 12-42. OPS CHECKS GOOD. A/C OK FOR SVC. (LP# 7410856)