As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT ILLUMINATES ON MASTER CAUTION RECALL. LEFT RAM DOOR FULL OPEN LIGHT ILLUMINATED AT CRUISE. GROUNDED - YES. COMPLIED WITH PACK TEMP CONTROLLER BITE PROCEDURE REF B737-900 FIM 21-62 TASK 801. FOUND FAULT # 21-51406 (SRDA EXIT). NO FAULTS FOUND AFTER GROUND TEST. PACK LIGHT EXTINGUISHED.