As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT'S SLIDING WINDOW WAS OPEN. WINDOW TRIM DEBONDED FROM WINDOW ALLOWING WINDOW SLIDER TO DEPART AIRCRAFT. THIS IS THE SECOND OCCURRENCE AT THIS CONTRACT LOCATION. FIRST ONE WAS CAUGHT IN TIME AND WINDOW TRIM WAS REBONDED. FIRST ONE WAS ON BK117B1, COPILOT'S WINDOW. WINDOW PART NUMBER NOT VISIBLE ON PART.