As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT PACK LIGHT CAME ON DURING FLIGHT WHEN RECALL PUSHED AT TOP OF DESCENT. IT WENT OUT WHEN MASTER CAUTION RESET. GROUNDED - YES. RELEASED PER MEL 21-32B. RIGHT HAND PACK PRIME TEMP CONTROL INOP. R/H PFTC SHOWS SRADA INLET 21-51405 FAULT IN FAULT HISTORY. NO EXISTING FAULTS. ACCOMPLISHED B737-900 FIM 21-62 TASK 878. NO FAULTS. GROUND VERIFICATION IS GOOD. CLEARS MEL 21-32B.