What was found
RIGHT OVERWING HATCH MAJOR AIR LEAK. UNABLE TO MAINTAIN CABIN PRESSURIZATION. RETURNED TO SFO. *S/D* FOUND DOOR SEAL AT RIGHT OVERWING EXIT DOOR TO BE INSTALLED INCORRECTLY. SEAL REINSTALLED PER MM, OPS CHECK NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RIGHT OVERWING HATCH MAJOR AIR LEAK. UNABLE TO MAINTAIN CABIN PRESSURIZATION. RETURNED TO SFO. *S/D* FOUND DOOR SEAL AT RIGHT OVERWING EXIT DOOR TO BE INSTALLED INCORRECTLY. SEAL REINSTALLED PER MM, OPS CHECK NORMAL.