What was found
RT PACK FAILED IN FLIGHT. AT TOMC REQUEST BOTH UPPER AND LOWER R/H PACK FLOW CONTROL VALVES REPLACED, IAW AMM 21-51-01 AND 21-51-02 REV 99. LOG UPDATED FOR ROTABLE PARTS CHANGE. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1404926 SN OFF 0022 TT # 1226861 SN OFF 3410. VALVE, AIR, PAC OFF 25-2151-9-0002 8822 ON 0000 VALVE, AIR, PAC OFF 25-2151-9-0002 8822 ON 25-2151-9-0002 8035 VALVE, AIR, PAC OFF 25-2151-9-0002 0341 ON 0000 VALVE, AIR, PAC OFF 25-2151-9-0002 0341 ON 25-2151-9-0002 3292. OP AND LEAK CHECK C/OUT SATIS.