As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED LOSS OF ALTITUDE AND HEADING INDICATIONS ON HIS SIDE (RT SIDE) WITH ASSOCIATED MALFUNCTION OF AUTOPILOT NR 2. FLOATS WERE DEPLOYED AS PRECAUTIONARY MEASURE DUE TO BEING IMC OVER WATER. NOTE: NO DISCREPANCIES HAVE BEEN FOUND YET. TROUBLESHOOTING STILL IN PROGRESS WITH THE ASSISTANCE OF MFG ENGINEERING. (K)