What was found
AIR TURNBACK. DURING CLIMB F/A HEARD LOUD POP and HIGH SQUEAL STARTED IN COCKPIT. FOUND CAPT AUX PITOT TUBE SCREWS LOOSE, TIGHTEN SCREWS PER MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIR TURNBACK. DURING CLIMB F/A HEARD LOUD POP and HIGH SQUEAL STARTED IN COCKPIT. FOUND CAPT AUX PITOT TUBE SCREWS LOOSE, TIGHTEN SCREWS PER MM.