As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#2 PACK LIGHT ILLUMINATED ON RECALL. RESETS WITH MASTER CAUTION. GROUNDED - YES. PERFORMED PACK ZONE TEMPERATURE CONTROL UNIT (PZTC) BITE #2 PZTC FAULTED RH RAM AIR EXIT ACTUATOR. ACCOMPLISHED B737-900 FIM 21-62 TASK 854 INITIAL EVALUATION AFTER PZTC BITE FAULTS CLEARED. GROUND VERIFICATION TEST SUCCESSFUL.