As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CABIN ZONE TEMP ILLUMINATES ON RECALL. ACFT GROUNDED. PERFORMED PACK-ZONE TEMP CONTROLLER BITE PROCEDURE. FOUND STANDBY PACK FAULT LIGHT ILLUMINATED DURING THE BITE PROCEDURE ON THE NR 2 PACK - ZONE TEMP CONTROLLER. FAULT NOT PRESENT DURING THE VERIFY PROCESS. FAULT CODE CLEARED. NO HISTORY PAST 60 DAYS. REF AMM 21-61-00-700-806--002.