As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT DUCT LEAK THEN RIGHT DUCT LEAK, LOST REMAINING RT PACK AUTO PRESS 1 AND 2 FAIL MSGS. LOST CABIN PRESS, EMERGENCY DESCENT TO 10,000 FT. FOUND DUCT IN RT SIDE BLOWN BLOWING HOT AIR INTO THE RT AND LT A/C BAYS GIVING DUCT LEAK MSGS. DUCT BLOWN WAS THE REHEATER DUCT FOR THE RT PACK. REPLACED SAME. LEFT PACK WAS ALREADY ON MCO.