What was found
ZONE TEMP CONT ON WITH RECALL, RESETS WITH MASTER CAUTION. ACFT GROUNDED. ACCOMPLISHED PACK ZONE TEMP CONT BITE ON BOTH CONTS. NR 1 SHOWS NO FAULTS, NR 2 SHOWS FAULT FOR FLT DECK CONT VALVE (V143). CLEARED FAULT. CLEANED ALL 3 TEMP SENSOR FILTERS. RAN BOTH PACKS FOR 75 MIN. ACCOMP TEMP CONT & IND OPS TEST, TEST PASSES. REACCOMP PACK/ ZONE TEMP CONT BITE, NO FAULTS ON BOTH CONTROLLERS. GROUND VERIFICATION PASSES REF MM 21-61-06-100-801, 21-61-00-700-807-002, 21-00-00-800-803, & 21-61-00-700-806-002.