As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRST OFFICER'S SLIDING WINDOW OPERATION WAS INTERMITTENT, HAD TO MAKE SEVERAL ATTEMPTS TO OPEN. WINDOW WOULD JAM AFTER THE FIRST INCH OF MOVEMENT. FOUND CHAFE STRIP BEHIND FIRST OFFICER'S SLIDING WINDOW LOOSE AND RUBBING ON THE WINDOW. RESECURED STRIP AS REQUIRED, OPS CHECKED GOOD.