What was found
CONT CAB ZONE TEMP LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED PACK TEMP CONTROL BITE REF B737-800 FIM 21-62 TASK 801. FOUND "FLT DECK TRIM VALVE" FAULTING ON M1443 COMPUTER. PERFORMED PACK/ZONE CON "R" FOR FLIGHT DECK TRIM VALVE FAULT REF FIM 21-62 TASK 832. PERFORMED LEAK CHECK ON TAV CLAMPS AND FOUND A SLIGHT LEAK. TIGHTENED CLAMPS AT VALVE V143 (FLIGHT DECK TRIM VALVE) IAW B737-800 AMM 21-61-21. NO LEAKS NOTED. PERFORMED FIM 21-62 TASK 801 AND AMM 21-61-21 AND NO FAULTS WERE PRESENT. SUPPLIED PRESSURE TO PNEUMATIC SYSTEM TO CHECK FOR LEAKS AT L/H FLT DECK ZONE TRIM AIR VALVE AND L/H ECS BAY AND NO LEAKS WERE DETECTED.