As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FIRST OFFICER R2 WINDOW LOCKING HANDLE TIGHT TO LOCK AND UNLOCK. FIRST OFFICER NUMBER 2 SLIDING WINDOW REMOVED AND INSTALLED. 0.044 INCH SHIM REMOVED FROM LOWER AFT HOUSING. FORCE CHECK ACCOMPLISHED PER B737NG AMM 56-12-11-820-801.