What was found
**ATB**LEVEL 3 AIR MANF 3 FAIL CLIMBING OUT OF 12,000 ALERT AUTO SYSTEM ISOLATED THE #3 BLOCKED AND THEN ALERT CAME BACK. ATB FOUND FAULTS FOR MANIFOLD AND ANTI ICE VALVE IN THE ESC INOP RESET . VERIFIED WITH TELEMETRY THAT THE RIGHT WING ANTI ICE VALVE FAIL PRIOR TO THE MANIFOLD FAILURE WHICH IS ESC SYSTEM OPERATING PROPERLY. REMOVED AND INSTALLED RIGHT WING ANTI ICE VALVE IAW AMM 30-11-01-000-801. LEAK AND OPS CHECKS GOOD. ANTI ICE AND MANIFOLD OPERATES NORMALLY IAW AMM 30-11-01.