As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT NOT GROUNDED) FA'S REPORT ON DESCENT THE DIRTY SOCKS SMELL IN THE AFT GALLEY/CABIN STARTED AT 18000 FOR 10 MIN AND DISSIPATED BEFORE LANDING / (RESOLVED ON W/O: 524910 TASKCARD: NR-00001 ) COMPLETED TASK CARD 21-000-002. NO SMELL DETECTED. FOUND OIL COOLER FAN TRANSFER TUBE LEAKING OIL. FOUND LUBE MODULE GASKET LEAKING. INSTALLED NEW LUBE MODULE GASKET IAW AMM 49-91-45-400-003-A. LEAK CHECK GOOD.