As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SCL - CREW REPORTED RIGHT PACK FAILED WITH LEFT PACK ON PLACARD. EMERGENCY DECLARED FLIGHT RETURNED SCL LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND AIR LEAK TO LEFT DUCT ASSEMBLY TURBINE INLET. REPOSITIONED CLAMP. SYSTEM GROUND CHECK NORMAL OPERATION. (CLOSED)