What was found
DEN - ABORTED TAKEOFF - C - ON T/O ROLL THE CREW GOT CLASS 1 ECAM MESSAGE FOR SKIN VALVE FAULT AND REJECTED THE T/O AT 90 KTS. MX PLACED THE SKIN AIR EXTRACT VALVE ON MEL 21-26-04, COND 1. IN PHX MX C/W BITE CHECK IAW AMM 21-26-55 AFTER REACTIVATION, OP'S CHECKED GOOD AT THAT TIME AND THE MEL WAS CLEARED. ON 10/10/01 THE FAULT RETURNED. MX TROUBLESHOT AND REPLACED AVEC (10HQ), EXHAUST VALVE PRESS SW (30HQ) AND PERFORMED WIRING CHECKS BETWEEN AEVC AND SAOV (22HQ). STILL FAILED TEST IAW 21-26-00-710-00-1. MX REPLACED THE SKIN AIR OUTLET VALVE (SAOV 22HQ) PER AWA TECH SUPPORT, AND FUNCTIONAL CHECKS WERE GOOD. NOTE: PREVIOUS FAULT SHOWS SKIN AIR VALVE. NO FURTHER DISCREPANCIES REPORTED.