As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT RETURNED TO BOISE, AIRCRAFT WAS PRESSURIZED ON GROUND. PROBLEM WAS FOUND TO BE A DUCT DISCONNECTED AT RT WATER SEPARATER. FOUND CLAMP OFF DUCT ON OUTLET SIDE OF RT WATER SEPARATER. REINSTALLED CLAMP. OP'S CHECK AND LEAK CHECK GOOD. (M)