As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOUD RUSHING AIR SOUND FROM CAPT SIDE SLIDING WINDOW-UPPER L COR NER L2 WINDOW FOUND CAPT HEADSET JACK STUCK IN TOP AFT WINDOW FRAME WITH WINDOW IN THE CLOSED POSITION. REMOVED HEADSET JACK FROM WINDOW FRAME PRESSURIZED AIRCRAFT TO 3 PSI DIFF. NO LEAKS NOTED. RETURNED AIRCRAFT TO SERVICE.