As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FAS REPORTED MUSKY ODOR ON TAKEOFF, THEN AGAIN FOR AROUND 5 MINUTES DURING LANDING. MAINTENANCE FOUND APU OIL COOLER FAN ASSEMBLY LEAKING OIL. REMOVED AND REPLACED OIL COOLER FAN ASSEMBLY IAW AMM 49-52-51. OPS & LEAK CHECKS OK. ACCOMPLISHED JOB CARDS 26L00021001,26L00021002 AND 26L00021004 IAW TSI. NO CABIN ODERS NOTED.