What was found
AFTER START WE HAD CONTROL CABIN ZONE TEMP LIGHT - ZONE TEMP LIGHT EXTINGUISHED AFTER MASTER CAUTION RESET. GROUNDED - YES. (RESOLVED ON W/O: 1969318 TASKCARD: N/R-00003 ) INITIAL EVAL, HAD CONTROL CAB ZONE TEMP ON MASTER RECALL. PERFORMED PZTC IAW FIM 21-62 TASK 801. #1 NO FAULTS, GREEN ON VERIFY. #2 HAD FLT DECK TRIM VALVE ON BIT, CLEARED GREEN ON VERIFY. CONT CAB ZONE TEMP LT NO LONGER ON RECALL. DUE TO PREVIOUS HISTORY, CLEANED FLT DECK TEMP BULB AT OVERHEAD IAW AMM 21-61-10-100-801. NOTED: FILTER AND BULB WERE VERY DUSTY AND PROBABLY HAD NOT BEEN PERFORMED PREVIOUSLY. PERFORMED CABIN TEMP CONTROL AND INDICATION OPS TEST IAW AMM 21-61-00-700-807-002. NO FAULTS NOTED. RERAN PZTC 1/2 BITE, NO FAULTS. ALL PACK LTS REMAIN OFF AT P5 OVERHEAD. THIS CLEARS MEL 21-21G. 1 CB PULLED, COLLARED, AND RESET. PLACARDS REMOVED. SEAMC NOTIFIED.