What was found
ENG 2 BLEED FAULT ON T/O, A/C CONTINUED FLIGHT. IN CRUISE, ENG 1 BLEED FAULT AT FL 360, NO LOSS OF CABIN PRESSURE, INITIATED EMERGENCY DESCENT. PER TSM TASK 36-11-54-05, FOUND NR 2 ENG FAN AIR VALVE AT FAULT, REMOVED AND REPLACED NR 2 ENG FAN AIR VALVE IAW AMM 36-11-54-04. OPS CHECK & LEAK CHECKS NORMAL, NO FAULT NOTED. ALSO REMOVED AND REPLACED ENG NR 1 FAN AIR VALVE, OPS CHECK OK.