What was found
THUMPING IN CONTROL WHEEL AND UNDER F/AS FLOOR AFTER GEAR RETRACTION. A/C RETURNED TO ATL AFTER T/O. EMERGENCY DECLARED. FLT 4215 DEL 173 MINS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
THUMPING IN CONTROL WHEEL AND UNDER F/AS FLOOR AFTER GEAR RETRACTION. A/C RETURNED TO ATL AFTER T/O. EMERGENCY DECLARED. FLT 4215 DEL 173 MINS.