As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ISSUE- CREW REPORTED AT LEVEL FL350. TOUCHED NOTHING. RECEIVED A “PTRIP MAIN INOP” EICAS MESSAGE FOLLOWED BY AN ASSOCIATED “AP TRIM FAIL” AN “AP ELVE MISTRIM”. RAN AND FOLLOWED QRH PROCEDURES DIVERTED TO DAL. CORR ACTION MX TROUBLESHOT TO BAD HSCU R&R HSCU. OPS CHECK GOOD NO DEFECTS NOTED.