As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TRANSDUCER IS CORRODED (SEVERELY PITTED). THIS CORROSION APPEARS TO START AT THE ETCHING USED TO INSTALL PART NUMBER OR SERIAL NUMBER. THE CORROSION NORMALLY SPREADS ONTO CONNECTOR PLUG AND TENDS TO TRANSFER ONTO AXLE, CORRODING IT. S/N 406 AND S/N 431.