As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FT # 1171, LGA-FLL. DIRTY SOCK/MUSTY DRY SMELL STRONG ODOR FROM TO POWER THRU 17K. DISSIPATED ONCE ABOVE PRECIPITATION.STRONG ODOR AGAIN IDLE DESC; PERFORMED INFO NOTICE 2017-T015F. APU REQUIRES REPLACEMENT DUE TO OIL CONTAMINATION AND LEAKAGE. PERFORMED ECS DECONTAMINATION. A/C IS OK FOR SERVICE.