As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF FROM ALT-GPT, UPON RAISING THE GEAR A GEAR UP DISAGREE MESSAGE WAS RECEIVED. THE QRH WAS COMPLIED WITH AND THE AIRCRAFT RETURNED TO ATL, LANDING SAFELY. EMERGENCY EQUIPMENT WAS ON STANDBY AS A PRECAUTION. MAINTENANCE REMOVED AND REPLACED THE NR 3 HYDRAULIC RESERVOIR. OPS CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)