As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD CABIN TEMP CONTROLLER WILL NOT REMAIN SELECTED TEMP. ACCOMPLISHED FIM TASK 21-61- TASK 864 ALL CHECKED GOOD EXCEPT STEP 4 FILTER CLOGGED WOULD NOT HOLD PAPER. INSTALLED NEW FILTER ELEMENT AND CLEANED FILTER PERFORMED OPS CHECK, CHECKED GOOD REF FIM TAST 21-61-864.