As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE AIRCRAFT WAS IN BASE MAINTENANCE. R2 WINDOW CRANK GRINDS WHEN OPENING AND CLOSING. ADJUSTED R2 WINDOW PER AMM 56-11-02. CLEANED AND LUBRICATED INTERNAL MECHANISM AND WINDOW TRACK PER AMM 12-21-34. ADJUSTMENT AND OPERATIONS CHECK GOOD.