As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT LOWER RECIRC FAN INOP. REMOVED AND REPLACED LEFT LOWER RECIRC FAN PER FIM TASK 21-25- 00-810-807. OPS AND LEAK CHECK GOOD. OK TO CONTINUE. ROTABLE PARTS CHANGE WAS INDICATED - TT 1450893 S/N OFF 00964 FAN, AIR, CABIN OFF 25-2125-9-0003 0964 ON 25-2125-9-0003 0900.