What was found
ON TAKEOFF - #1 N1, IN FMC & SET PWR LEVEL ROSE BY 0.8% TO COMMAND 90.2% VS #2 N1 OF 89.4% TAKEOFF PERF DATA CALLED FOR 89.4% N1, FLAPS 5, ASSUMED TEMP 45* & ACTUAL TEMP OF 15* AT 24K POWER. #1 THRUST LEVER ALSO WAS DISPLACED 1/2" FWD OF #2 PWR LEVER. NOTICED IT ON FLIGHT UP TO ANC AS WELL. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 77-11 TASK 804 TEST FAILED AT STEP C 7 C STEP 5. 4 OR 5 X'S. COMPLETED FIM. RETESTED SYS-OPS OK. SUSPECT R PACK VALVE INTERMITTENT DESCRETE. REMOVED AND REPLACED RH FLOW CONTROL AND SHUTOFF VALVE REF B737-900 AMM 21-51-01. INSTALLATION TEST OK. NO LEAKS NOTED. ACCOMPLISHED PACK FLOW TEMPERATURE CONTROLLER BITE TEST REF AMM 21-61-00-740-801-002. NO FAULTS NOTED.