As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT PACK LIGHT ILLUMINATES ON MASTER CAUTION RECALL AND GOES OUT ON MC RESET. GROUNDED - YES. ACCOMPLISHED PACK TEMP CONTROL BITE PROCEDURE ON NR 1 AND NR 2 CONTROLLERS, BOTH TESTS PASSED NO FAULTS NOTED. VERIFIED GREEN LIGHT ON, NO LRU FAULTS-ON SRADA EXIT ACTUATOR, REF B737-900 FIM 21-62 TASK 801. LT PACK SRADA (EXIT) REPLACED. LT PACK OPERATES NORMALLY.