What was found
AIRCRAFT WOULD NOT PRESSURE AFTER TAKEOFF WITH LEFT PACK ONLY ON. OUTFLOW VALVE FULLY CLOSED WITH MANUAL AC, NO HELP. REINSTALLED REAR CARGO DOOR SEAL, PRESSURE CHECKED NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WOULD NOT PRESSURE AFTER TAKEOFF WITH LEFT PACK ONLY ON. OUTFLOW VALVE FULLY CLOSED WITH MANUAL AC, NO HELP. REINSTALLED REAR CARGO DOOR SEAL, PRESSURE CHECKED NORMAL.