As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4710 - DURING FLIGHT FROM DFW-SAV, MACH TRIM, F/O''S AIRSPEED, VSI, AND ALTIMETER ALL INOPERATIVE. AN EMERGENCY WAS DECLARED INBOUND TO DFW. AIRCRAFT RETURNED TO AND LANDED SAFELY IN DFW. MAINTENANCE REMOVED AND REPLACED AIR DATA COMPUTER. OPERATIONAL CHECKS NORMAL. AIRCRAFT RETURNED TO SERVICE. (M)