As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: CAPTAIN SIDING WINDOW REQUIRES UNNATURAL FORCE TO GET THE BUTTON TO DEPRESS TO OPEN AS WELL AS FORCEFUL JIGGLING TO HAVE THE RED CLOSED AND LOCKED BAND TO POP UP WHEN CLOSING. MAINTENANCE RIGGED CAPTAIN SLIDING WINDOW PER AMM 56-12-00 ANDACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.