As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT PACK LIGHT ILLUMINATED WITH MASTER CAUTION, EXTINGUISHED WITH MASTER RECALL RESET. ACFT GROUNDED. ACCOMPLISHED A PACK FLOW TEMPERATURE CONTROLLER BITE TEST. LEFT PFTC BITE TEST PASSED, NO EXISTING FAULTS NOTED. RIGHT PFTC BITE TEST PASSED. NO EXISTING FAULTS NOTED. FAULT HISTORY ON RIGHT PFTC SHOWED LEG 7 FAULT 21-51046 28V, STANBY POWER OFF. INTERMITTENT FAULT. FAULT STATE SHOWED RECOVERED. IAW AMM 21-61-00-740-801-002. NO HISTORY IN 60 DAYS.