What was found
A/C PACK LIGHT ILLUMINATED AFTER GROUND POWER APPLIED. ACFT GROUNDED. STARTED WORKING BITE PROCEDURES 801 PACK TEMP CONTROL BITE PROCEDURE. FOUND RED TCV LIGHT ILLUMINATED. REF 21-62, TASK 801 A TO B. 1, G, 4, C. STARTED WORKING LT TEMP CONTROL VALVE FAULT ISOLATION 830, REF 21-62, TASK 830 A TO E 3. REPLACED TEMPERATURE CONTROL VALVE, REF MM 21-51-10-400-801 3. A TO D 7. COMPLETED INSTALL OF TCV REF MM 21-51-10-400-801. COMPLETED BITE PROCEDURE 21-62, TASK 801 AND FAULT ISOLATION 21-62, TASK 830. TCV LIGHT NOW GREEN.