As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT PACK LIGHT ON WITH RECALL. EXTINGUISHED WITH MASTER CAUTION RESET. GROUNDED - YES. PERFORMED PZTC BITE IAW B737-900 FIM 21-62 TASK 801 ON ZONE TEMP CONTROLLER 2. PREV FLT SHOWS THIS PACK TCV FAULT. NO CURRENT FAULTS. RAN R/H PACK AT VARYING TEMPS FOR 10 MINUTES, NO LIGHTS ILLUMINATED, NO LIGHTS ON RECALL. PZTC BITE PASSES WITH NO RED LIGHTS.