What was found
AIRCRAFT WOULD NOT PRESSURIZE DURING ASCENT. FOUND APU PNEUMATIC DUCT FOWARD PRESSURE SEAL NOT SECURED (CLAMP OFF). SECURED PRESSURE SEAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WOULD NOT PRESSURIZE DURING ASCENT. FOUND APU PNEUMATIC DUCT FOWARD PRESSURE SEAL NOT SECURED (CLAMP OFF). SECURED PRESSURE SEAL.