As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
A/C PRESSURIZATION, WOULD NOT HOLD PRESSURIZATION ABOVE 15000 ON ONE PACK WITH CARGO HEAT OUTFLOW CLOSED. FOUND GATE SEALS ON THE L1 AND L2 DOORS NOT SECURED. SECURED SEAL IAW MM 52-11-71 PERFORMED ADJ/TEST IAW MM 21-31-00 OPS CK OKAY.