As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENROUTE, DUCTING FOR EXTERNAL AC CAME LOOSE, LOST PRESSURIZATION. REINSTALLED FLEX HOSE COUPLING TO RIGID TUBING IN EXTERNAL AIR CONDITIONING DUCT ABOVE CHECK VALVE. OPS AND LEAK CHECK GOOD. SECURITY CHECK GOOD IN RT A/C PACK. OK FOR SERVICE.