As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT FAILED TO PRESSURIZE; FO SLIDING WINDOW LOCKED BUT DID NOT FULLY SEAL.<[01] FOUND FO?S SLIDING WINDOW NOT PROPERLY CLOSED; R & R?D FO?S SLIDING WINDOW PER MT 756-12-03. PERFORMED SATISFACTORY CABIN PRESSURE LEAK TEST PER AMM 05-51-91.