As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED INROUTE TO LGA DUE TO THE FLIGHT CREW REPORTING THAT AFTER LEVEL, AIRCRAFT WENT INTO CWS P. AUTO TILT FAIL ON ND, FOLLOWED BY NO TAT ON ENG DISPLAY. THE AIRCRAFT LANDED SAFELY AT LGA WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED TAT PROBE AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 34-21-06.