What was found
NO AIR FLOW FROM RIGHT AIR CONDITIONING PACK, PRESSURE INDICATION WAS NORMAL, BUT WHEN LEFT PACK WAS SELECTED OFF THE CABIN PRESSURE WAS LOST. FOUND DUCT OFF FROM HEAT EXCHANGER, INSTALLED NEW DUCT AND LEAK CHECKED GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
NO AIR FLOW FROM RIGHT AIR CONDITIONING PACK, PRESSURE INDICATION WAS NORMAL, BUT WHEN LEFT PACK WAS SELECTED OFF THE CABIN PRESSURE WAS LOST. FOUND DUCT OFF FROM HEAT EXCHANGER, INSTALLED NEW DUCT AND LEAK CHECKED GOOD.