What was found
ON CLIMB OUT OF PHX EN ROUTE TO ABQ WHILE PASSING THROUGH 800 FT RECEIVED ECAM WARNING FOR AVIONICS VENT SYSTEM FAULT, TURNED BACK TO PHX FOR REPAIR. ISSUED MEL 21-26-04, COND. 1 "SKIN AIR OUTLET VALVE". MAINTENANCE REMOVED AND REPLACED SKIN AIR OUTLET VALVE 22HQ IAW T/C R2A21301, TWO SEPARATE BITE TESTS OF AEVC SYSTEM FOUND NO FAULTS. VENDORS FUNCTIONAL TEST OF SKIN AIR OUTLET VALVE S/N 119 COULD NOT CONFIRM REASON FOR REMOVAL, UNIT TESTED GOOD IN ALL PHASES OF OPERATION PER CMM 21-26-53, REV. 6.