As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CABIN ZONE TEMP LIGHT ILLUMINATED DURING MASTER RECALL & EXTINGUISHED WITH MASTER RECALL RESET. GROUNDED - YES. PERFORMED PACK/ZONE TEMPERATURE CONTROLLER BITE TEST IAW AMM 21-61-00, NR 1 TEMP CONTROLLER SHOWS PREVIOUS FLIGHT "ZONE TRIM VALVE" FAULT. RAN "VERIFY" TEST ON NR 1 CONTROLLER NUMEROUS TIMES, NO FAULTS NOTED. GROUND FUNCTIONAL TESTS NORMAL. OK FOR CONTINUED SERVICE.