As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT DIVERTED TO JFK DUE TO A FAILED AIR DATA COMPUTER. REPLACED LT ELECTRONIC ATTITUDE DIRECTION INDICATOR (EADI) PER MM 34-22-03, 401. CLEANED AIR VENTS ON RT EADI PER 34-22-00. OPS CKD BOTH EADI'S IN PRIMARY AND ALTERATE FOR APPROX 4 HRS. ALL SYS FUNCTIONED NORMALLY. SUSPECT SUBCIRCUIT FAILURE.