As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE INVESTIGATING A RT BLEED AIR FAIL ANNUNCIATOR. DISCOVERED THE WELD FOR THE PRESSURE SWITCH CRACKED ON THE RT WING DEICE TUBE, INBOARD OF THE RT INSTRUMENT AIR VALVE. REMOVED TUBE AND DISCOVERED THAT THE B-NUT FLARE WAS MISFORMED AND PARTIALLY RESTRAIGHTENED.