What was found
LOAD NOISE AFTER TAKEOFF, AFTER GEAR UP SELECTION ADG DEPLOYED, ALL OTHER INDICATIONS NORMAL. FLIGHT 4180 RETURNED TO LAND WITHOUT FURTHER INCIDENT. ATC TOWER DECLARED EMER FOR CREW. R & R AUTO CONTROL PANEL IAW AMM 24-23-15. PERFORMED ELEC WIRING CONTINUITY CHECK IAW ESPM 20-12-01. OPERATIONS CHECKED GOOD. PERFORMED INSPECTION OF ADG IAW 24-23-01. PREFORMED LPI IAW SB ERP510AG-24-3, NO DEFECTS NOTED. ALL AREAS CHECKED GOOD. STOWED ADG IAW 24-23-01. PERFORMED OPERATIONS C CHECK IAW AMM 24-23-15. OPERATIONS CHECKED GOOD. SEE NON-ROUTINE WC N096131 FOR WORK PERFORMED.