As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK LIGHT ILLUMINATES ON MASTER CAUTION RECALL AND RESETS WITH MASTER CAUTION. GROUNDED - YES. #2 PZTC LOGGED RT RAM AIR ACT FAULT. REMOVED AND REPLACED R/H RAM AIR DOOR ACTUATOR PER B737-800 AMM 21-51-21. OPERATIONAL TEST PASS. PZTC BITE TEST PASS. RAN PACK W/ APU AND ENGINES NOTING PROPER OPERATION. ETOPS GROUND VERIFICATION SUCCESSFUL.