What was found
LOOSE OBJECT IN DUCTING FWD OF FIRST OFFICER'S INSTRUMENT PANEL. NOISE IN CKPT AIR DUCT. REMOVED CLAMPS ON CKPT AC DUCT BELOW FLOOR IN FWD EE BAY & FOUND WASHER & BROKEN TIE WRAP. REMOVED ITEMS & ASSEMBLED DUCTING, NOISE WENT AWAY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LOOSE OBJECT IN DUCTING FWD OF FIRST OFFICER'S INSTRUMENT PANEL. NOISE IN CKPT AIR DUCT. REMOVED CLAMPS ON CKPT AC DUCT BELOW FLOOR IN FWD EE BAY & FOUND WASHER & BROKEN TIE WRAP. REMOVED ITEMS & ASSEMBLED DUCTING, NOISE WENT AWAY.