What was found
VENT AVNCS SYS FAULTON STATUS UNABLE TO RESET. AEVC TEST SHOWS SKIN AIR OUTLET. PLACED ON MEL 2126C. COMPLIED WITH DDPG AND MM 21-26-00-040-002-A. AEVC TEST COMPLIED WITH. COMPLIED WITH DDPG. OK TO MEL. VALVE, SKIN AIR OFF 31-2125-9-0001 2792 ON 31-2125-9-0001 0282 VALVE, SKIN AIR OFF 31-2125-9-0001 2792 ON 0000 REMOVED AND REPLACED SKIN AIR OUTLET VALVE IAW AMM 21-26-53. OPS CK GOOD. NO FURTHER DEFECTS NOTED. VENT AVNX SYS MESSAGE NO LONGER ACTIVE. PARTS USED: 31-2125-9-0001,QTY :1 18-2126-3-0092,QTY :1 40-0595-3-4206,QTY :1 40-0608-3-0272,QTY :1 40-0597-3-0713,QTY :1 1865638,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1865638 SN OFF 0746 IPC REFERENCE # 21-26-03.