As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK LIGHT ILLUMINATED ON MASTER CAUTION RECALL AFTER START, EXTINGUISHES UPON MASTER CAUTION RESET. GROUNDED - YES. DUE TO HISTORY, REMOVED & REPLACED R/H RAM AIR INLET ACTUATOR REF B737-800 AMM 21-51-21. PULLED & RESET 2 TOTAL C/BS. ACCOMPLISHED #2 PACK/ZONE TEMPERATURE CONTROLLER BITE TEST REF AMM 21-61-00-700-806-002, OPS CK NML.