What was found
RT PACK LIGHT ILLUMINATED DURING CLIMB OUT ABOUT 24K FEET. RAN CHECK LIST LIGHT STAYED ILLUMINATED. RETURNED TO SEATTLE PER DISPATCH. GROUNDED - YES. DIVERSION TIME 35 MINUTES - ACCOMP WIRING CHECKS PER TSR 710605 STEP 1 NO DISCREPANCIES, STEP 2 NO DISCREPANCIES, STEP 3 NO DISCREPANCIES, RECONNECTED D3872, V141 INSTALL TEST PASSES REF B737-900 AMM 21-51-10/401 STEP 4 NO DISCREPANCIES. ACCOMP STEP 5 REHEATER CHECK FOR CRACKS NO DEFECTS NOTED. ACCOMP STEP 6 FORCES WERE L/H-8LBS, R/H-9LBS WITHIN LIMITS REF AMM 21-51-21. BEARINGS FOR BOTH L/H & R/H DEFLECTOR DOORS, MODULATING DOORS AND ACTUATORS FOUND BINDING. REPLACED BEARINGS ALL OPS NORMAL.