As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DEPARTURE WITH LT PACK MEL'D, RECEIVED "RT PACK TRIP". COULD NOT PRESSURIZE ACFT. FOUND DUCT DISCONNECTED FROM TOP OF R/H HEAT EXCHANGER AND FROM THE ACM COMPRESSOR OUTLET, INSTALLED DUCT WITH NEW COUPLER AND PERI SEALS IAW AMM ACM. R & R SECTION. FOUND REMAINING 2 DUCTS COMING FROM ACM TO HAVE THEIR CONNECTING BOLTS VERY LOOSE; TIGHTENED SAME, OPS CHECKED RT PACK IS NORMAL REF AMM 21-51-03-4 SUBTASK 21-51-03-434-033.